anchor.diff:      "build=release"
       "qtdir=${qt4}"
       "faad=1"
  +    "opus=1"
     ];
   
     buildPhase = ''
  
positive.code: { stdenv, fetchFromGitHub, makeWrapper, chromaprint, fetchpatch
  , fftw, flac, faad2, glibcLocales, mp4v2
  , libid3tag, libmad, libopus, libshout, libsndfile, libusb1, libvorbis
  , pkgconfig, portaudio, portmidi, protobuf, qt4, rubberband, scons, sqlite
  , taglib, upower, vampSDK
  }:
  
negative.code: 
    buildInputs = [
      chromaprint fftw flac faad2 glibcLocales mp4v2 libid3tag libmad libopus libshout libsndfile
      libusb1 libvorbis opusfile pkgconfig portaudio portmidi protobuf qt4
      rubberband scons sqlite taglib upower vampSDK
    ];
  
  