alsa-plugins-dev.tcz
   alsa-plugins.tcz
      libsamplerate.tcz
         libsndfile.tcz
      speexdsp.tcz
         speex.tcz
            libogg.tcz
   libsamplerate-dev.tcz
      libsamplerate.tcz
         libsndfile.tcz
      libsndfile-dev.tcz
   speexdsp-dev.tcz
      speexdsp.tcz
         speex.tcz
            libogg.tcz
      speex-dev.tcz
         speex.tcz
            libogg.tcz
         libogg-dev.tcz
            libogg.tcz