librsvg-2-2
  provides "libsrvg-<targettype> = <version>"
gdk-pixbuf-loader-rsvg
  requires "gdk-pixbuf-query-loaders-<targettype>"
  supplements "packageand(librsvg-2-2-<targettype>:gdk-pixbuf-<targettype>)"
  post "%gdk_pixbuf_loader_post"
  postun "%gdk_pixbuf_loader_postun"