anchor.diff:      cp -r scripts $out/lib
       cp -r plugins $out/lib/plugins
       cp -r patterns $out/lib/patterns
  +    cp -r fonts $out/lib/fonts
  +    cp -r libraries $out/lib/libraries
  +    cp -r linetypes $out/lib/linetypes
  +    cp -r ts $out/lib/ts
   
       # workaround to fix the library browser:
       rm -r $out/lib/plugins/sqldrivers
       ln -s -t $out/lib/plugins ${qtbase}/${qtbase.qtPluginPrefix}/sqldrivers
   
  +    rm -r $out/lib/plugins/printsupport
  +    ln -s -t $out/lib/plugins ${qtbase}/${qtbase.qtPluginPrefix}/printsupport
  +
  +    rm -r $out/lib/plugins/imageformats
  +    ln -s -t $out/lib/plugins ${qtbase}/${qtbase.qtPluginPrefix}/imageformats
  +
       install -Dm644 scripts/qcad_icon.svg $out/share/icons/hicolor/scalable/apps/qcad.svg
   
  +    installManPage qcad.1
  +
       runHook postInstall
  -    '';
  +  '';
   
     buildInputs = [
       boost
  
positive.code:     pkg-config
      qmake
      qttools
    ];
  
    meta = with lib; {
  
negative.code:         src/3rdparty/qt-labs-qtscriptgenerator-5.14.0/qt-labs-qtscriptgenerator-5.14.0.pro \
          src/3rdparty/qt-labs-qtscriptgenerator-${qtbase.version}/qt-labs-qtscriptgenerator-${qtbase.version}.pro
      fi
    '';
  
    qmakeFlags = [
      "MUPARSER_DIR=${muparser}"
  