anchor.diff:    nativeBuildInputs = [ cmake gettext ninja qttools ];
   
     buildInputs = [
  -    qmlbox2d qtbase qtdeclarative qtgraphicaleffects qtmultimedia qtquickcontrols qtsensors qtxmlpatterns
  +    qmlbox2d
  +    qtdeclarative
  +    qtgraphicaleffects
  +    qtmultimedia
  +    qtquickcontrols
  +    qtsensors
  +    qtxmlpatterns
     ] ++ (with gst_all_1; [
  -    gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad
  +    gstreamer
  +    gst-plugins-base
  +    gst-plugins-good
  +    gst-plugins-bad
     ]);
   
     postInstall = ''
  -    install -Dm444 ../org.kde.gcompris.desktop        $out/share/applications/gcompris.desktop
  +    install -Dm444 ../org.kde.gcompris.desktop     -t $out/share/applications
  +    install -Dm444 ../org.kde.gcompris.appdata.xml -t $out/share/metainfo
       install -Dm444 ../images/256-apps-gcompris-qt.png $out/share/icons/hicolor/256x256/apps/gcompris-qt.png
  -    install -Dm444 ../org.kde.gcompris.appdata.xml -t $out/share/metainfo
   
       qtWrapperArgs+=(--prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0")
     '';
  
positive.code: 
  mkDerivation rec {
    pname = "gcompris";
    version = "2.1";
  
    src = fetchurl {
      url = "http://gcompris.net/download/qt/src/gcompris-qt-${version}.tar.xz";
      sha256 = "sha256-ljOY/uybXzfwOFmhBXB4sC4Vn/C8BP1BeUUPpdHuQwo=";
    };
  
    cmakeFlags = [
  
negative.code:     description = "A high quality educational software suite, including a large number of activities for children aged 2 to 10";
      homepage = "https://gcompris.net/";
      license = licenses.gpl3Plus;
      mainProgram = "gcompris-qt";
      maintainers = with maintainers; [ guibou ];
      platforms = platforms.linux;
    };
  