Created attachment 875963 [details]
Build log

Summary:

I have observed this issue while building the latest GNOME:Factory/gnome-boxes
package using pre-release gcc14 from home:rguenther:plgrnd/gcc.  I'm building
in home:gkenion:gcc14, in which the gnome-boxes and gcc packages are linked to
GNOME:Factory and home:rguenther:plagrnd, respectively.

The build fails during C compilation, with the following error (from attatched
boxes.gcc14.build.log):

2231 [   23s] In file included from /usr/include/glib-2.0/glib.h:64,
2232 [   23s]                  from
/usr/include/glib-2.0/gobject/gbinding.h:30,
2233 [   23s]                  from /usr/include/glib-2.0/glib-object.h:24,
2234 [   23s]                  from src/gnome-boxes.p/libvirt-broker.c:6:
2235 [   23s] src/gnome-boxes.p/libvirt-broker.c: In function
‘boxes_libvirt_broker_add_domain_co’:
2236 [   23s] /usr/include/glib-2.0/glib/gmessages.h:671:16: error: returning
‘void *’ from a function with return type ‘gboolean’ {aka ‘int’} makes integer
from pointer without a cast [-W     int-conversion]
2237 [   23s]   671 |         return (val); \
2238 [   23s]       |                ^




In this case, the errant call appears in gmessages.h, which is generated by
vala during the build.

Workaround would be to specify more permissive c_args.  Would also be
worthwhile to communicate this issue to upstream devs, if they aren't already
aware.  I haven't found anything indicating they are, but I figured the
OpenSUSE GNOME maintainers would follow upstream more closely than I do, and
might have existing rapport with the devs.

Steps to reproduce:
Build the home:gkenion:gcc14/gnome:boxes package hosted on the OpenSUSE OBS
instance.