anchor.diff:      "-DGEANT4_INSTALL_DATA=OFF"
       "-DGEANT4_USE_GDML=ON"
       "-DGEANT4_USE_G3TOG4=ON"
  -    "-DGEANT4_USE_QT=${if enableQT then "ON" else "OFF"}"
  +    "-DGEANT4_USE_QT=${if enableQt then "ON" else "OFF"}"
       "-DGEANT4_USE_XM=${if enableXM then "ON" else "OFF"}"
       "-DGEANT4_USE_OPENGL_X11=${if enableOpenGLX11 then "ON" else "OFF"}"
       "-DGEANT4_USE_INVENTOR=${if enableInventor then "ON" else "OFF"}"
  
positive.code: 
    nativeBuildInputs =  [
      cmake
    ] ++ lib.optionals enableQT [
      wrapQtAppsHook
    ];
  
    dontWrapQtApps = !enableQT;
  
    buildInputs = [ libGLU xlibsWrapper libXmu ]
      ++ lib.optionals enableInventor [ libXpm coin3d soxt motif ]
  
negative.code:   boost_python = boost.override { enablePython = true; python = python3; };
  in
  
  lib.warnIf (enableQT != false) "geant4: enableQT is deprecated, please use enableQt"
  
  stdenv.mkDerivation rec {
    version = "11.0.0";
    pname = "geant4";
  