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