Fix mingw build
Fix mingw build

printf is redefined by glib/gi18n.h

In file included from ../spice-common/common/spice_common.h:29:0,
                 from ../spice-common/common/ring.h:23,
                 from spice-channel-cache.h:23,
                 from spice-session-priv.h:26,
                 from desktop-integration.c:29:
../spice-common/common/log.h:49:17: error: 'libintl_printf' is an unrecognized format function type [-Werror=format]
../spice-common/common/log.h:56:16: error: 'libintl_printf' is an unrecognized format function type [-Werror=format]
In file included from ../spice-common/common/canvas_base.h:25:0,
                 from decode.h:23,
                 from spice-session-priv.h:27,
                 from desktop-integration.c:29:
../spice-common/common/lz.h:22:5: error: 'libintl_printf' is an unrecognized format function type [-Werror=format]
../spice-common/common/lz.h:23:5: error: 'libintl_printf' is an unrecognized format function type [-Werror=format]
../spice-common/common/lz.h:24:5: error: 'libintl_printf' is an unrecognized format function type [-Werror=format]

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