root@head64_svn-mc_exp:~ # cd /usr/ports/lang/vala-vapigen/
root@head64_svn-mc_exp:/usr/ports/lang/vala-vapigen # make
===>  Building for vala-vapigen-0.26.0
gmake[1]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0'
gmake[1]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0'
gmake[1]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/gobject-introspection'
gmake[1]: `libgidl.la' is up to date.
gmake[1]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/gobject-introspection'
gmake[1]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/gobject-introspection'
gmake[1]: `gen-introspect' is up to date.
gmake[1]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/gobject-introspection'
gmake[1]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen'
gmake  all-recursive
gmake[2]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen'
Making all in vala-gen-introspect
gmake[3]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen/vala-gen-introspect'
gmake[3]: Nothing to be done for `all'.
gmake[3]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen/vala-gen-introspect'
gmake[3]: Entering directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen'
gmake[3]: *** No rule to make target `../codegen/libvala-0.26.la', needed by `vapigen'.  Stop.
gmake[3]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen'
gmake[2]: *** [all-recursive] Error 1
gmake[2]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen'
gmake[1]: *** [all] Error 2
gmake[1]: Leaving directory `/wrkdirs/usr/ports/lang/vala-vapigen/work/vala-0.26.0/vapigen'
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to