Take <glib.h> out of extern "C"
and do the same for other <glib/*.h> files, which presumably should be treated the same.
This should fix issue #128 (closed).
I tested it with the older glib 2.66 I have around and that still builds.
I do get a lot of complaints about GTimeVal though - somebody should fix those.
/usr/pkg/include/gtk-2.0/gtk/gtktooltips.h:73:12: warning: 'GTimeVal' is deprecated: Use 'GDateTime' instead [-Wdeprecated-declarations]
GTimeVal last_popdown;
^~~~~~~~~~~~Oh yes, the CI pipeline would work better if somebody merged !12 (merged) .