audiofile-dev.tcz
   audiofile.tcz
      flac.tcz
         libiconv.tcz
         libogg.tcz
   flac-dev.tcz
      flac.tcz
         libiconv.tcz
         libogg.tcz
      libiconv-dev.tcz
         libiconv.tcz
      libogg-dev.tcz
         libogg.tcz