build: use AM_GLIB_GNU_GETTEXT
build: use AM_GLIB_GNU_GETTEXT

For some unknown reason, this set DATADIRNAME='share' on Windows,
which is what is expected.

Although some people say only IT_PROG_INTLTOOL is necessary, it gets
the path wrong in this case too.

elmarco/spice-gtk,dezelin/spice-gtk,elmarco/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,fgouget/spice-gtk,SPICE/spice-gtk,mathslinux/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,mathslinux/spice-gtk,SPICE/spice-gtk,guodong/spice-gtk,elmarco/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,guodong/spice-gtk,Fantu/spice-gtk,dezelin/spice-gtk,mathslinux/spice-gtk,fgouget/spice-gtk,Fantu/spice-gtk,mathslinux/spice-gtk,fgouget/spice-gtk,SPICE/spice-gtk,dezelin/spice-gtk,elmarco/spice-gtk,guodong/spice-gtk,flexVDI/spice-gtk,SPICE/spice-gtk,Fantu/spice-gtk,dezelin/spice-gtk,Fantu/spice-gtk,guodong/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,flexVDI/spice-gtk