=> "/opt/pkg/bin/bmake" ["-C", "/data/jenkins/workspace/pkgsrc-upstream-trunk/sysutils/nnn", "all", "BATCH=1", "DEPENDS_TARGET=/nonexistent"]
===> Building for nnn-5.1
gcc -I/opt/pkg/include -DNCURSES_WIDECHAR=1 -I/opt/pkg/include/ncurses -DPCRE -pipe -O2 -msave-args -fno-aggressive-loop-optimizations -DCTX8 -D__EXTENSIONS__ -I/opt/pkg/include -DNCURSES_WIDECHAR=1 -I/opt/pkg/include/ncurses -std=c11 -Wall -Wextra -Wshadow   -L/opt/pkg/lib -Wl,-R/opt/pkg/lib -o nnn  src/nnn.c -lreadline -lpcre -lncurses -lpthread
src/nnn.c:880:12: error: static declaration of 'dprintf' follows non-static declaration
  880 | static int dprintf(int fd, const char *format, ...)
      |            ^~~~~~~
In file included from /usr/include/libgen.h:45,
                 from src/nnn.c:82:
/usr/include/stdio.h:375:17: note: previous declaration of 'dprintf' with type 'int(int,  const char * restrict, ...)'
  375 | extern int      dprintf(int, const char *_RESTRICT_KYWD, ...)
      |                 ^~~~~~~
src/nnn.c:880:12: warning: 'dprintf' defined but not used [-Wunused-function]
  880 | static int dprintf(int fd, const char *format, ...)
      |            ^~~~~~~
gmake: *** [Makefile:224: nnn] Error 1
*** Error code 2

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

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