anchor.diff:      boost
       muparser
       libGLU
  -    qt5.qtbase
  -    qt5.qtscript
  -    qt5.qtsvg
  -    qt5.qtxmlpatterns
  +    qtbase
  +    qtscript
  +    qtsvg
  +    qtxmlpatterns
     ];
   
     nativeBuildInputs = [
       pkgconfig
  -    qt5.qmake
  -    qt5.qttools
  +    qmake
  +    qttools
     ];
   
     enableParallelBuilding = true;
  
positive.code: 
      # workaround to fix the library browser:
      rm -r $out/lib/plugins/sqldrivers
      ln -s -t $out/lib/plugins ${qt5.qtbase}/${qt5.qtbase.qtPluginPrefix}/sqldrivers
  
      install -Dm644 scripts/qcad_icon.svg $out/share/icons/hicolor/scalable/apps/qcad.svg
  
  
negative.code:     homepage = "https://qcad.org";
      license = licenses.gpl3;
      maintainers = with maintainers; [ yvesf ];
      platforms = qtbase.meta.platforms;
    };
  }
  