trivial: Fix --enable-ostree build
trivial: Fix --enable-ostree build

superm1/appstream-glib,superm1/appstream-glib,mitya57/appstream-glib,ikeydoherty/appstream-glib,ximion/appstream-glib,ikeydoherty/appstream-glib,ximion/appstream-glib,ximion/appstream-glib,hughsie/appstream-glib,hughsie/appstream-glib,mitya57/appstream-glib,hughsie/appstream-glib