=> "/opt/pkg/bin/bmake" ["-C", "/data/jenkins/workspace/pkgsrc-upstream-trunk/emulators/mame", "all", "BATCH=1", "DEPENDS_TARGET=/nonexistent", "PYTHON_VERSION_REQD=313"]
===> Building for mame-0.288
/usr/bin/rm -f /tmp/work/emulators/mame/work/.buildlink/include/png*
makefile:235: *** Unable to detect OS from uname -a: SunOS i86pc i386.  Stop.
*** Error code 2

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

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