anchor.diff:      ''
     );
   
  +  preFixup = optionalString (config == "mumble") ''
  +    wrapProgram $out/bin/mumble \
  +      --prefix 'QT_PLUGIN_PATH' : "$QT_PLUGIN_PATH" \
  +      --run "$DEFAULT_QT_STYLE_OVERRIDE"
  +  '';
  +
     meta = with lib; {
       description = "Low-latency, high quality voice chat software";
       homepage = http://mumble.sourceforge.net/;
  
positive.code:     protobuf-cpp
      qt5
    ] ++ optionals (config == "mumble") [
      alsa-lib
      fixesproto
      inputproto
  
negative.code:   nativeBuildInputs = [
      python2
    ] ++ optionals (config == "mumble") [
      makeWrapper
      qt5
    ] ++ optionals (config == "murmur") [
      which
  