+ case "${usergroup_phase}" in
+ local run_cmd
+ run_cmd=run_su
+ shift
+ run_su /opt/pkg/bin/bmake all BATCH=1 DEPENDS_TARGET=/nonexistent PYTHON_VERSION_REQD=312 WRKLOG=/tmp/bulklog/openscad-2021.01nb38/work.log
+ su pbulk -c '"$@"' make /opt/pkg/bin/bmake all BATCH=1 DEPENDS_TARGET=/nonexistent PYTHON_VERSION_REQD=312 WRKLOG=/tmp/bulklog/openscad-2021.01nb38/work.log
===> Building for openscad-2021.01nb38
--- openscad_interface.h ---
--- objects/lexer.cxx ---
--- objects/comment_lexer.cxx ---
--- objects/parser.cxx ---
--- openscad_interface.h ---
/opt/pkg/qt5/bin/qdbusxml2cpp -p openscad_interface.h: org.openscad.OpenSCAD.xml
--- objects/lexer.cxx ---
flex -o objects/lexer.cxx --header-file=objects/lexer.hxx src/lexer.l
--- objects/comment_lexer.cxx ---
flex -o objects/comment_lexer.cxx --header-file=objects/comment_lexer.hxx src/comment_lexer.l
--- objects/parser.cxx ---
bison -d -p parser -o objects/parser.cxx --defines=objects/parser.hxx src/parser.y
--- objects/comment_parser.cxx ---
--- objects/ui_ErrorLog.h ---
--- objects/comment_parser.cxx ---
bison -d -p comment_parser -o objects/comment_parser.cxx --defines=objects/comment_parser.hxx src/comment_parser.y
--- objects/ui_ErrorLog.h ---
/opt/pkg/qt5/bin/uic src/ErrorLog.ui -o objects/ui_ErrorLog.h -tr q_
--- objects/comment_parser.cxx ---
src/comment_parser.y: warning: 3 shift/reduce conflicts [-Wconflicts-sr]
src/comment_parser.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
--- objects/ui_OpenCSGWarningDialog.h ---
/opt/pkg/qt5/bin/uic src/OpenCSGWarningDialog.ui -o objects/ui_OpenCSGWarningDialog.h -tr q_
--- objects/ui_AboutDialog.h ---
/opt/pkg/qt5/bin/uic src/AboutDialog.ui -o objects/ui_AboutDialog.h -tr q_
--- objects/ui_FontListDialog.h ---
/opt/pkg/qt5/bin/uic src/FontListDialog.ui -o objects/ui_FontListDialog.h -tr q_
--- objects/ui_PrintInitDialog.h ---
/opt/pkg/qt5/bin/uic src/PrintInitDialog.ui -o objects/ui_PrintInitDialog.h -tr q_
--- objects/ui_ProgressWidget.h ---
/opt/pkg/qt5/bin/uic src/ProgressWidget.ui -o objects/ui_ProgressWidget.h -tr q_
--- objects/ui_launchingscreen.h ---
/opt/pkg/qt5/bin/uic src/launchingscreen.ui -o objects/ui_launchingscreen.h -tr q_
--- objects/ui_LibraryInfoDialog.h ---
/opt/pkg/qt5/bin/uic src/LibraryInfoDialog.ui -o objects/ui_LibraryInfoDialog.h -tr q_
--- objects/ui_Console.h ---
/opt/pkg/qt5/bin/uic src/Console.ui -o objects/ui_Console.h -tr q_
--- objects/ui_ParameterWidget.h ---
/opt/pkg/qt5/bin/uic src/parameter/ParameterWidget.ui -o objects/ui_ParameterWidget.h -tr q_
--- objects/ui_ParameterEntryWidget.h ---
/opt/pkg/qt5/bin/uic src/parameter/ParameterEntryWidget.ui -o objects/ui_ParameterEntryWidget.h -tr q_
--- objects/ui_ButtonConfigWidget.h ---
--- objects/ui_AxisConfigWidget.h ---
--- objects/src/AST.o ---
--- objects/ui_ButtonConfigWidget.h ---
/opt/pkg/qt5/bin/uic src/input/ButtonConfigWidget.ui -o objects/ui_ButtonConfigWidget.h -tr q_
--- objects/ui_AxisConfigWidget.h ---
/opt/pkg/qt5/bin/uic src/input/AxisConfigWidget.ui -o objects/ui_AxisConfigWidget.h -tr q_
--- objects/src/AST.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/AST.o src/AST.cc
--- objects/src/ModuleInstantiation.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/ModuleInstantiation.o src/ModuleInstantiation.cc
--- objects/src/Assignment.o ---
--- objects/src/export_pdf.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/export_pdf.o src/export_pdf.cc
--- objects/src/Assignment.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/Assignment.o src/Assignment.cc
--- objects/src/expr.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/expr.o src/expr.cc
--- objects/src/function.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/function.o src/function.cc
--- objects/src/expr.o ---
In file included from /home/pbulk/build/cad/openscad/work/.buildlink/include/boost/smart_ptr/detail/deprecated_macros.hpp:8,
                 from /home/pbulk/build/cad/openscad/work/.buildlink/include/boost/smart_ptr/detail/atomic_count.hpp:48,
                 from /home/pbulk/build/cad/openscad/work/.buildlink/include/boost/smart_ptr/intrusive_ref_counter.hpp:18,
                 from /home/pbulk/build/cad/openscad/work/.buildlink/include/boost/filesystem/exception.hpp:21,
                 from /home/pbulk/build/cad/openscad/work/.buildlink/include/boost/filesystem.hpp:17,
                 from src/AST.h:5,
                 from src/Assignment.h:6,
                 from src/value.h:18,
                 from src/expression.h:5,
                 from src/expr.cc:27:
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/config/pragma_message.hpp:24:34: note: '#pragma message: The practice of declaring the Bind placeholders (_1, _2, ...) in the global namespace is deprecated. Please use <boost/bind/bind.hpp> + using namespace boost::placeholders, or define BOOST_BIND_GLOBAL_PLACEHOLDERS to retain the current behavior.'
   24 | # define BOOST_PRAGMA_MESSAGE(x) _Pragma(BOOST_STRINGIZE(message(x)))
      |                                  ^~~~~~~
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/bind.hpp:36:1: note: in expansion of macro 'BOOST_PRAGMA_MESSAGE'
   36 | BOOST_PRAGMA_MESSAGE(
      | ^~~~~~~~~~~~~~~~~~~~
src/expr.cc: In member function 'virtual Value Vector::evaluate(const std::shared_ptr<Context>&) const':
src/expr.cc:345:41: warning: redundant move in return statement [-Wredundant-move]
  345 |                         return std::move(vec);
      |                                ~~~~~~~~~^~~~~
src/expr.cc:345:41: note: remove 'std::move' call
src/expr.cc:350:33: warning: redundant move in return statement [-Wredundant-move]
  350 |                 return std::move(vec);
      |                        ~~~~~~~~~^~~~~
src/expr.cc:350:33: note: remove 'std::move' call
src/expr.cc: In member function 'virtual Value LcFor::evaluate(const std::shared_ptr<Context>&) const':
src/expr.cc:752:33: warning: redundant move in return statement [-Wredundant-move]
  752 |                 return std::move(vec);
      |                        ~~~~~~~~~^~~~~
src/expr.cc:752:33: note: remove 'std::move' call
src/expr.cc: In member function 'virtual Value LcForC::evaluate(const std::shared_ptr<Context>&) const':
src/expr.cc:798:21: warning: redundant move in return statement [-Wredundant-move]
  798 |     return std::move(vec);
      |            ~~~~~~~~~^~~~~
src/expr.cc:798:21: note: remove 'std::move' call
--- objects/src/module.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/module.o src/module.cc
--- objects/src/expr.o ---
src/expr.cc: At global scope:
src/expr.cc:49:14: warning: 'bool {anonymous}::isListComprehension(const std::shared_ptr<Expression>&)' defined but not used [-Wunused-function]
   49 |         bool isListComprehension(const shared_ptr<Expression> &e) {
      |              ^~~~~~~~~~~~~~~~~~~
In file included from src/expr.cc:38:
src/stackcheck.h: In constructor 'StackCheck::StackCheck()':
src/stackcheck.h:21:21: warning: storing the address of local variable 'c' in '*this.StackCheck::ptr' [-Wdangling-pointer=]
   21 |                 ptr = &c;
      |                 ~~~~^~~~
src/stackcheck.h:20:31: note: 'c' declared here
   20 |                 unsigned char c;
      |                               ^
src/stackcheck.h:19:20: note: 'this' declared here
   19 |         StackCheck() : limit(PlatformUtils::stackLimit()) {
      |                    ^
--- objects/src/UserModule.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/UserModule.o src/UserModule.cc
--- objects/src/annotation.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/annotation.o src/annotation.cc
--- objects/src/libsvg/libsvg.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/libsvg.o src/libsvg/libsvg.cc
--- objects/src/UserModule.o ---
In file included from src/UserModule.cc:32:
src/stackcheck.h: In constructor 'StackCheck::StackCheck()':
src/stackcheck.h:21:21: warning: storing the address of local variable 'c' in '*this.StackCheck::ptr' [-Wdangling-pointer=]
   21 |                 ptr = &c;
      |                 ~~~~^~~~
src/stackcheck.h:20:31: note: 'c' declared here
   20 |                 unsigned char c;
      |                               ^
src/stackcheck.h:19:20: note: 'this' declared here
   19 |         StackCheck() : limit(PlatformUtils::stackLimit()) {
      |                    ^
--- objects/src/libsvg/circle.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/circle.o src/libsvg/circle.cc
--- objects/src/libsvg/ellipse.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/ellipse.o src/libsvg/ellipse.cc
--- objects/src/libsvg/line.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/line.o src/libsvg/line.cc
--- objects/src/libsvg/text.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/text.o src/libsvg/text.cc
--- objects/src/libsvg/tspan.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/tspan.o src/libsvg/tspan.cc
--- objects/src/libsvg/data.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/data.o src/libsvg/data.cc
--- objects/src/libsvg/polygon.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/polygon.o src/libsvg/polygon.cc
--- objects/src/libsvg/polyline.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/polyline.o src/libsvg/polyline.cc
--- objects/src/libsvg/rect.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/rect.o src/libsvg/rect.cc
--- objects/src/libsvg/group.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/group.o src/libsvg/group.cc
--- objects/src/libsvg/svgpage.o ---
--- objects/src/libsvg/path.o ---
--- objects/src/libsvg/svgpage.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/svgpage.o src/libsvg/svgpage.cc
--- objects/src/libsvg/path.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/path.o src/libsvg/path.cc
--- objects/src/libsvg/shape.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/shape.o src/libsvg/shape.cc
--- objects/src/libsvg/transformation.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/transformation.o src/libsvg/transformation.cc
--- objects/src/libsvg/util.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/libsvg/util.o src/libsvg/util.cc
--- objects/src/version_check.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/version_check.o src/version_check.cc
--- objects/src/linalg.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/linalg.o src/linalg.cc
--- objects/src/Camera.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/Camera.o src/Camera.cc
--- objects/src/handle_dep.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/handle_dep.o src/handle_dep.cc
--- objects/src/value.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/value.o src/value.cc
--- objects/src/degree_trig.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/degree_trig.o src/degree_trig.cc
--- objects/src/value.o ---
src/value.cc: In function 'std::ostream& operator<<(std::ostream&, const UndefType&)':
src/value.cc:479:65: warning: unused parameter 'u' [-Wunused-parameter]
  479 | std::ostream& operator<<(std::ostream& stream, const UndefType& u)
      |                                                ~~~~~~~~~~~~~~~~~^
src/value.cc: In member function 'Value FunctionType::operator<(const FunctionType&) const':
src/value.cc:683:52: warning: unused parameter 'other' [-Wunused-parameter]
  683 | Value FunctionType::operator< (const FunctionType &other) const {
      |                                ~~~~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value FunctionType::operator>(const FunctionType&) const':
src/value.cc:686:52: warning: unused parameter 'other' [-Wunused-parameter]
  686 | Value FunctionType::operator> (const FunctionType &other) const {
      |                                ~~~~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value FunctionType::operator<=(const FunctionType&) const':
src/value.cc:689:52: warning: unused parameter 'other' [-Wunused-parameter]
  689 | Value FunctionType::operator<=(const FunctionType &other) const {
      |                                ~~~~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value FunctionType::operator>=(const FunctionType&) const':
src/value.cc:692:52: warning: unused parameter 'other' [-Wunused-parameter]
  692 | Value FunctionType::operator>=(const FunctionType &other) const {
      |                                ~~~~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value UndefType::operator<(const UndefType&) const':
src/value.cc:696:46: warning: unused parameter 'other' [-Wunused-parameter]
  696 | Value UndefType::operator< (const UndefType &other) const {
      |                             ~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value UndefType::operator>(const UndefType&) const':
src/value.cc:699:46: warning: unused parameter 'other' [-Wunused-parameter]
  699 | Value UndefType::operator> (const UndefType &other) const {
      |                             ~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value UndefType::operator<=(const UndefType&) const':
src/value.cc:702:46: warning: unused parameter 'other' [-Wunused-parameter]
  702 | Value UndefType::operator<=(const UndefType &other) const {
      |                             ~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value UndefType::operator>=(const UndefType&) const':
src/value.cc:705:46: warning: unused parameter 'other' [-Wunused-parameter]
  705 | Value UndefType::operator>=(const UndefType &other) const {
      |                             ~~~~~~~~~~~~~~~~~^~~~~
src/value.cc: In member function 'Value plus_visitor::operator()(const VectorType&, const VectorType&) const':
src/value.cc:875:21: warning: redundant move in return statement [-Wredundant-move]
  875 |     return std::move(sum);
      |            ~~~~~~~~~^~~~~
src/value.cc:875:21: note: remove 'std::move' call
src/value.cc: In member function 'Value minus_visitor::operator()(const VectorType&, const VectorType&) const':
src/value.cc:900:21: warning: redundant move in return statement [-Wredundant-move]
  900 |     return std::move(sum);
      |            ~~~~~~~~~^~~~~
src/value.cc:900:21: note: remove 'std::move' call
src/value.cc: In function 'Value multvecnum(const VectorType&, const Value&)':
src/value.cc:916:19: warning: redundant move in return statement [-Wredundant-move]
  916 |   return std::move(dstv);
      |          ~~~~~~~~~^~~~~~
src/value.cc:916:19: note: remove 'std::move' call
src/value.cc: In function 'Value multmatvec(const VectorType&, const VectorType&)':
src/value.cc:940:19: warning: redundant move in return statement [-Wredundant-move]
  940 |   return std::move(dstv);
      |          ~~~~~~~~~^~~~~~
src/value.cc:940:19: note: remove 'std::move' call
src/value.cc: In member function 'Value Value::operator/(const Value&) const':
src/value.cc:1052:21: warning: redundant move in return statement [-Wredundant-move]
 1052 |     return std::move(dstv);
      |            ~~~~~~~~~^~~~~~
src/value.cc:1052:21: note: remove 'std::move' call
src/value.cc:1059:21: warning: redundant move in return statement [-Wredundant-move]
 1059 |     return std::move(dstv);
      |            ~~~~~~~~~^~~~~~
src/value.cc:1059:21: note: remove 'std::move' call
src/value.cc: In member function 'Value Value::operator-() const':
src/value.cc:1082:21: warning: redundant move in return statement [-Wredundant-move]
 1082 |     return std::move(dstv);
      |            ~~~~~~~~~^~~~~~
src/value.cc:1082:21: note: remove 'std::move' call
--- objects/src/func.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/func.o src/func.cc
--- objects/src/localscope.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/localscope.o src/localscope.cc
--- objects/src/value.o ---
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = UndefType; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = bool; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = double; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const equals_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value equals_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const equals_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const equals_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const equals_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = equals_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:821:30:   required from here
src/value.cc:773:63: warning: unused parameter 'op1' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:773:77: warning: unused parameter 'op2' [-Wunused-parameter]
  773 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return false; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = UndefType; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const UndefType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const UndefType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = bool; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const bool&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const bool&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = double; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const double&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const double&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const double&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = str_utf8_wrapper; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const str_utf8_wrapper&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const str_utf8_wrapper&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::VectorType; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const Value::VectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::VectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = Value::EmbeddedVectorType; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const Value::EmbeddedVectorType&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const Value::EmbeddedVectorType&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<RangeType>; U = ValuePtr<FunctionType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<FunctionType>&; Visitor = const notequal_visitor; Value1 = const ValuePtr<RangeType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<FunctionType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<FunctionType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<RangeType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = UndefType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const UndefType&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const UndefType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = UndefType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = bool]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const bool&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const bool&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = bool; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = bool; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = double]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const double&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const double&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = double; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = double; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = str_utf8_wrapper]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const str_utf8_wrapper&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const str_utf8_wrapper&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = str_utf8_wrapper; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = Value::VectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::VectorType&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::VectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::VectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = Value::EmbeddedVectorType]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const Value::EmbeddedVectorType&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const Value::EmbeddedVectorType&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = Value::EmbeddedVectorType; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
src/value.cc: In instantiation of 'Value notequal_visitor::operator()(const T&, const U&) const [with T = ValuePtr<FunctionType>; U = ValuePtr<RangeType>]':
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:75:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::apply_visitor_binary_invoke<Visitor, Value1, MoveSemantics>::operator()(Value2&&) [with Value2 = const ValuePtr<RangeType>&; Visitor = const notequal_visitor; Value1 = const ValuePtr<FunctionType>&; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:1016:24:   required from 'typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type boost::detail::variant::invoke_visitor<Visitor, MoveSemantics>::internal_visit(T&&, int) [with T = const ValuePtr<RangeType>&; Visitor = boost::detail::variant::apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>; bool MoveSemantics = false; typename boost::disable_if_c<(MoveSemantics && boost::is_same<Value2, Value2>::value), typename Visitor::result_type>::type = Value; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:105:34:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV, T*, mpl_::true_) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; typename Visitor::result_type = Value; mpl_::true_ = mpl_::bool_<true>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:145:41:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*, NoBackupFlag, int) [with Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; T = ValuePtr<RangeType>; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/visitation_impl.hpp:226:5:   required from 'typename Visitor::result_type boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV, mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0 = visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<8>, UndefType, boost::mpl::l_item<mpl_::long_<7>, bool, boost::mpl::l_item<mpl_::long_<6>, double, boost::mpl::l_item<mpl_::long_<5>, str_utf8_wrapper, boost::mpl::l_item<mpl_::long_<4>, Value::VectorType, boost::mpl::l_item<mpl_::long_<3>, Value::EmbeddedVectorType, boost::mpl::l_item<mpl_::long_<2>, ValuePtr<RangeType>, boost::mpl::l_item<mpl_::long_<1>, ValuePtr<FunctionType>, boost::mpl::l_end> > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor = invoke_visitor<apply_visitor_binary_invoke<const notequal_visitor, const ValuePtr<FunctionType>&, false>, false>; VoidPtrCV = const void*; NoBackupFlag = boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >::has_fallback_type_; typename Visitor::result_type = Value; mpl_::false_ = mpl_::bool_<false>]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   [ skipping 9 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2202:48:   required from 'static typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; VoidPtrCV = const void*; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2223:43:   required from 'typename Visitor::result_type boost::variant<T0, TN>::internal_apply_visitor(Visitor&) const [with Visitor = boost::detail::variant::invoke_visitor<boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/variant.hpp:2259:44:   required from 'typename Visitor::result_type boost::variant<T0, TN>::apply_visitor(Visitor&) const & [with Visitor = boost::detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const boost::variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; T0_ = UndefType; TN = {bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType>}; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_unary.hpp:47:60:   required from 'typename Visitor::result_type boost::apply_visitor(Visitor&, Visitable&&) [with Visitor = detail::variant::apply_visitor_binary_unwrap<const notequal_visitor, const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&, false>; Visitable = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
/home/pbulk/build/cad/openscad/work/.buildlink/include/boost/variant/detail/apply_visitor_binary.hpp:166:32:   required from 'typename Visitor::result_type boost::apply_visitor(const Visitor&, Visitable1&&, Visitable2&&) [with Visitor = notequal_visitor; Visitable1 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; Visitable2 = const variant<UndefType, bool, double, str_utf8_wrapper, Value::VectorType, Value::EmbeddedVectorType, ValuePtr<RangeType>, ValuePtr<FunctionType> >&; typename Visitor::result_type = Value]'
src/value.cc:826:30:   required from here
src/value.cc:764:63: warning: unused parameter 'op1' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                      ~~~~~~~~~^~~
src/value.cc:764:77: warning: unused parameter 'op2' [-Wunused-parameter]
  764 |   template <typename T, typename U> Value operator()(const T &op1, const U &op2) const { return true; }
      |                                                                    ~~~~~~~~~^~~
--- objects/src/feature.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/feature.o src/feature.cc
--- objects/src/func.o ---
src/func.cc: In function 'Value builtin_rands(std::shared_ptr<Context>, std::shared_ptr<EvalContext>)':
src/func.cc:152:33: warning: redundant move in return statement [-Wredundant-move]
  152 |                 return std::move(vec);
      |                        ~~~~~~~~~^~~~~
src/func.cc:152:33: note: remove 'std::move' call
src/func.cc: In function 'Value builtin_concat(std::shared_ptr<Context>, std::shared_ptr<EvalContext>)':
src/func.cc:544:25: warning: redundant move in return statement [-Wredundant-move]
  544 |         return std::move(result);
      |                ~~~~~~~~~^~~~~~~~
src/func.cc:544:25: note: remove 'std::move' call
src/func.cc: In function 'Value builtin_search(std::shared_ptr<Context>, std::shared_ptr<EvalContext>)':
src/func.cc:790:25: warning: redundant move in return statement [-Wredundant-move]
  790 |         return std::move(returnvec);
      |                ~~~~~~~~~^~~~~~~~~~~
src/func.cc:790:25: note: remove 'std::move' call
src/func.cc: In function 'Value builtin_version(std::shared_ptr<Context>, std::shared_ptr<EvalContext>)':
src/func.cc:804:25: warning: redundant move in return statement [-Wredundant-move]
  804 |         return std::move(vec);
      |                ~~~~~~~~~^~~~~
src/func.cc:804:25: note: remove 'std::move' call
--- objects/src/node.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/node.o src/node.cc
src/node.cc: In member function 'void AbstractNode::progress_prepare()':
src/node.cc:107:81: warning: 'std::mem_fun_t<_Ret, _Tp> std::mem_fun(_Ret (_Tp::*)()) [with _Ret = void; _Tp = AbstractNode]' is deprecated: use 'std::mem_fn' instead [-Wdeprecated-declarations]
  107 |         std::for_each(this->children.begin(), this->children.end(), std::mem_fun(&AbstractNode::progress_prepare));
      |                                                                     ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /opt/tools/gcc13/include/c++/13.3.0/bits/stl_tree.h:65,
                 from /opt/tools/gcc13/include/c++/13.3.0/map:62,
                 from src/context.h:3,
                 from src/evalcontext.h:3,
                 from src/node.cc:27:
/opt/tools/gcc13/include/c++/13.3.0/bits/stl_function.h:1371:5: note: declared here
 1371 |     mem_fun(_Ret (_Tp::*__f)())
      |     ^~~~~~~
--- objects/src/context.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/context.o src/context.cc
--- objects/src/builtincontext.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/builtincontext.o src/builtincontext.cc
--- objects/src/modcontext.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/modcontext.o src/modcontext.cc
--- objects/src/evalcontext.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/evalcontext.o src/evalcontext.cc
--- objects/src/csgnode.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/csgnode.o src/csgnode.cc
--- objects/src/CSGTreeNormalizer.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/CSGTreeNormalizer.o src/CSGTreeNormalizer.cc
--- objects/src/CSGTreeEvaluator.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/CSGTreeEvaluator.o src/CSGTreeEvaluator.cc
--- objects/src/evalcontext.o ---
src/evalcontext.cc: In member function 'virtual std::string EvalContext::dump(const AbstractModule*, const ModuleInstantiation*)':
src/evalcontext.cc:136:38: warning: variable 'result' set but not used [-Wunused-but-set-variable]
  136 |                                 auto result = variables.find(arg->getName());
      |                                      ^~~~~~
--- objects/src/Geometry.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/Geometry.o src/Geometry.cc
--- objects/src/Polygon2d.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/Polygon2d.o src/Polygon2d.cc
--- objects/src/clipper-utils.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/clipper-utils.o src/clipper-utils.cc
--- objects/src/polyset-utils.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/polyset-utils.o src/polyset-utils.cc
--- objects/src/GeometryUtils.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/GeometryUtils.o src/GeometryUtils.cc
--- objects/src/polyset.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/polyset.o src/polyset.cc
--- objects/src/csgops.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/csgops.o src/csgops.cc
--- objects/src/polyset.o ---
In file included from src/polyset.cc:31:
src/grid.h: In member function 'T Grid3d<T>::align(Eigen::Vector3d&)':
src/grid.h:120:63: error: call of overloaded 'sqrt(Eigen::GenericNumTraits<long int>::Real)' is ambiguous
  120 |                                                 float d = sqrt((key-k).squaredNorm());
      |                                                           ~~~~^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/math.h:35,
                 from /opt/tools/gcc13/include/c++/13.3.0/bits/std_abs.h:40,
                 from /opt/tools/gcc13/include/c++/13.3.0/cstdlib:81,
                 from /opt/tools/gcc13/include/c++/13.3.0/ext/string_conversions.h:43,
                 from /opt/tools/gcc13/include/c++/13.3.0/bits/basic_string.h:4109,
                 from /opt/tools/gcc13/include/c++/13.3.0/string:54,
                 from src/Geometry.h:4,
                 from src/polyset.h:3,
                 from src/polyset.cc:27:
/usr/include/iso/math_iso.h:232:28: note: candidate: 'long double std::sqrt(long double)'
  232 |         inline long double sqrt(long double __X) { return __sqrtl(__X); }
      |                            ^~~~
/usr/include/iso/math_iso.h:183:22: note: candidate: 'float std::sqrt(float)'
  183 |         inline float sqrt(float __X) { return __sqrtf(__X); }
      |                      ^~~~
/usr/include/iso/math_iso.h:77:15: note: candidate: 'double std::sqrt(double)'
   77 | extern double sqrt(double);
      |               ^~~~
--- objects/src/polyset-utils.o ---
In file included from src/polyset-utils.cc:7:
src/grid.h: In member function 'T Grid3d<T>::align(Eigen::Vector3d&)':
src/grid.h:120:63: error: call of overloaded 'sqrt(Eigen::GenericNumTraits<long int>::Real)' is ambiguous
  120 |                                                 float d = sqrt((key-k).squaredNorm());
      |                                                           ~~~~^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/math.h:35,
                 from /opt/tools/gcc13/include/c++/13.3.0/bits/std_abs.h:40,
                 from /opt/tools/gcc13/include/c++/13.3.0/cstdlib:81,
                 from /opt/tools/gcc13/include/c++/13.3.0/ext/string_conversions.h:43,
                 from /opt/tools/gcc13/include/c++/13.3.0/bits/basic_string.h:4109,
                 from /opt/tools/gcc13/include/c++/13.3.0/string:54,
                 from src/Geometry.h:4,
                 from src/polyset.h:3,
                 from src/polyset-utils.cc:2:
/usr/include/iso/math_iso.h:232:28: note: candidate: 'long double std::sqrt(long double)'
  232 |         inline long double sqrt(long double __X) { return __sqrtl(__X); }
      |                            ^~~~
/usr/include/iso/math_iso.h:183:22: note: candidate: 'float std::sqrt(float)'
  183 |         inline float sqrt(float __X) { return __sqrtf(__X); }
      |                      ^~~~
/usr/include/iso/math_iso.h:77:15: note: candidate: 'double std::sqrt(double)'
   77 | extern double sqrt(double);
      |               ^~~~
--- objects/src/transform.o ---
g++ -c -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -I/usr/include -I/opt/pkg/include/python3.12 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/libdrm -I/opt/pkg/qt5/include -I/opt/pkg/include/gstreamer-1.0 -I/opt/pkg/include/ncurses -I/opt/pkg/include/libxml2 -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -Wno-register -I/usr/include -I/opt/pkg/include -I/opt/pkg/lib/dbus-1.0/include/dbus -I/opt/pkg/include/glib-2.0 -I/opt/pkg/include/gio-unix-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libdrm -D_Noreturn= -DSTACKSIZE=8388608 -fno-strict-aliasing -std=c++0x -std=c++1y -I/opt/pkg/include/libxml2 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/harfbuzz -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include/glib-2.0 -I/opt/pkg/lib/glib-2.0/include -I/opt/pkg/include -DEIGEN_DONT_ALIGN -frounding-math -Wall -Wextra -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2021.01 -DOPENSCAD_SHORTVERSION=2021.01 -DOPENSCAD_YEAR=2021.0 -DOPENSCAD_MONTH=01.0 -DOPENSCAD_DAY=.0 -DDEBUG -DSTACKSIZE=8388608 -DUSE_QOPENGLWIDGET -DENABLE_DBUS -DENABLE_OPENCSG -DENABLE_CGAL -DCGAL_HEADER_ONLY -DUSE_SCINTILLA_EDITOR -DQSCINTILLA_DLL -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -Isrc -Isrc/ext/libtess2/Include -I/opt/pkg/qt5/include -I/opt/pkg/qt5/include/QtPrintSupport -I/opt/pkg/qt5/include/QtWidgets -I/opt/pkg/qt5/include/QtMultimedia -I/opt/pkg/qt5/include/QtGui -I/opt/pkg/qt5/include/QtConcurrent -I/opt/pkg/qt5/include/QtNetwork -I/opt/pkg/qt5/include/QtDBus -I/opt/pkg/qt5/include/QtCore -Iobjects -I/opt/pkg/include -I/opt/pkg/include/libdrm -I/opt/pkg/include/eigen3 -I/opt/pkg/include -I/opt/pkg/qt5/mkspecs/solaris-g++-64 -o objects/src/transform.o src/transform.cc
--- objects/src/polyset.o ---
*** [objects/src/polyset.o] Error code 1

bmake: stopped making "all" in /home/pbulk/build/cad/openscad/work/openscad-openscad-2021.01
--- objects/src/polyset-utils.o ---
*** [objects/src/polyset-utils.o] Error code 1

bmake: stopped making "all" in /home/pbulk/build/cad/openscad/work/openscad-openscad-2021.01
bmake: 2 errors

bmake: stopped making "all" in /home/pbulk/build/cad/openscad/work/openscad-openscad-2021.01
*** Error code 2

Stop.
bmake[1]: stopped making "all" in /data/jenkins/workspace/pkgsrc-upstream-trunk/cad/openscad
*** Error code 1

Stop.
bmake: stopped making "all" in /data/jenkins/workspace/pkgsrc-upstream-trunk/cad/openscad