anchor.diff:    installPhase = ''
       mkdir -p $out/bin
       cp qtox $out/bin
  +    wrapProgram $out/bin/qtox \
  +      --prefix QT_PLUGIN_PATH : ${qt5.svg}/lib/qt5/plugins
     '';
  +
  +  enableParallelBuilding = true;
   
     meta = with stdenv.lib; {
       description = "QT Tox client";
  
positive.code:     maintainers = with maintainers; [ viric jgeerds ];
      platforms = platforms.all;
    };
  }
  
  
negative.code:     [
        libtoxcore-dev openal opencv libsodium filter-audio
        qt5.base qt5.tools libXScrnSaver glib gtk2 cairo
        pango atk qrencode ffmpeg qt5.translations makeWrapper
      ];
  
    nativeBuildInputs = [ pkgconfig ];
  