anchor.diff:  { stdenv
   , autoPatchelfHook
   , dpkg
  +, fahviewer
   , fetchurl
   , makeWrapper
   , python2
  
positive.code:   postFixup = ''
      sed -e 's|/usr/bin|$out/bin|g' -i $out/share/applications/FAHControl.desktop
      wrapProgram "$out/bin/FAHControl" \
        --set PYTHONPATH "$out/lib/python2.7/dist-packages"
    '';
  
  
negative.code:     makeWrapper
    ];
  
    buildInputs = [ fahviewer python ];
  
    doBuild = false;
  
  