gst-plugins-base-0.10.tcz
   gstreamer-0.10.tcz
      glib2.tcz
         libffi.tcz
         pcre.tcz
      libxml2.tcz
   libvorbis.tcz
      libogg.tcz
   libtheora.tcz
      libogg.tcz
   libasound.tcz
   gudev-lib.tcz
      udev-lib.tcz
      glib2.tcz
         libffi.tcz
         pcre.tcz