gstreamer-0.1-dev.tcz
   gstreamer-0.1.tcz
      glib2.tcz
         libffi.tcz
      libxml2.tcz
   glib2-dev.tcz
      glib2.tcz
         libffi.tcz
      libffi-dev.tcz
         libffi.tcz
   libxml2-dev.tcz
      libxml2-bin.tcz
         libxml2.tcz
      libxml2-python.tcz
         libxml2.tcz
         python.tcz
            tk.tcz
               tcl.tcz
            openssl-1.0.0.tcz
            bzip2-lib.tcz
            sqlite3.tcz
            libffi.tcz
            expat2.tcz