anchor.diff:    '';
   
     nativeBuildInputs = [cmake
  -                       pkgconfig
  -                       wrapGAppsHook];
  +                       pkgconfig];
   
     buildInputs = [qtbase
                    qttools
  
positive.code:                  opencv
                   libraw
                   libtiff
                   quazip
                   gsettings-desktop-schemas];
  
    cmakeFlags = ["-DENABLE_OPENCV=ON"
                  "-DENABLE_RAW=ON"
  
negative.code: { stdenv
  , mkDerivation
  , fetchFromGitHub
  , cmake
  , pkgconfig
  
  , qtbase
  , qttools
  