anchor.diff:      "--disable-tools"
     ];
   
  -  nativeBuildInputs = [
  -    gettext
  -    ruby
  -  ];
  -
  -  buildInputs = [
  -    boost
  -    expat
  -    file
  -    flac
  -    libebml
  -    libmatroska
  -    libogg
  -    libvorbis
  -    qt5.qtbase
  -    xdg_utils
  -    zlib
  -  ] ++ optionals (!stdenv.cc.isGNU) [
  -    libiconv
  -  ];
  -
     buildPhase = ''
       ./drake -j $NIX_BUILD_CORES
     '';
  
positive.code:     sha256 = "1751sf6brwwl1dq64155s4a12784q35dyqfy028qrwr1ilafhbci";
    };
  
    postPatch = ''
      patchShebangs ./rake.d/
      patchShebangs ./Rakefile
  
negative.code:   installPhase = ''
      ./drake install -j $NIX_BUILD_CORES
    '';
  
    meta = with stdenv.lib; {
      description = "Cross-platform tools for Matroska";
  