anchor.diff:    meta = {
       homepage    = http://qt-project.org/;
       description = "A cross-platform application framework for C++";
  -    license     = "GPL/LGPL";
  +    license     = licenses.lgpl21Plus; # or gpl3
       maintainers = with maintainers; [ lovek323 phreedom sander urkud ];
       platforms   = platforms.linux;
     };
  
positive.code:   src = fetchurl {
      url = "http://download.qt-project.org/official_releases/qt/"
        + "${v_maj}/${vers}/qt-everywhere-opensource-src-${vers}.tar.gz";
      sha256 = "0f51dbgn1dcck8pqimls2qyf1pfmsmyknh767cvw87c3d218ywpb";
    };
  
    # The version property must be kept because it will be included into the QtSDK package name
  
negative.code: 
  let
    v_maj = "4.8";
    v_min = "6";
    vers = "${v_maj}.${v_min}";
  in
  
  