anchor.diff:    cmakeFlags = [ "-DCMAKE_SKIP_BUILD_RPATH=OFF"
                    "-DPYQT5_SIP_DIR=${python3Packages.pyqt5}/share/sip/PyQt5"
                    "-DQSCI_SIP_DIR=${python3Packages.qscintilla-qt5}/share/sip/PyQt5" ] ++
  -                 stdenv.lib.optional withGrass "-DGRASS_PREFIX7=${grass}/${grass.name}";
  +                 lib.optional withGrass "-DGRASS_PREFIX7=${grass}/${grass.name}";
   
     meta = {
       description = "A Free and Open Source Geographic Information System";
       homepage = http://www.qgis.org;
  -    license = stdenv.lib.licenses.gpl2Plus;
  -    platforms = with stdenv.lib.platforms; linux;
  -    maintainers = with stdenv.lib.maintainers; [ lsix ];
  +    license = lib.licenses.gpl2Plus;
  +    platforms = with lib.platforms; linux;
  +    maintainers = with lib.maintainers; [ lsix ];
     };
   }
  
positive.code:     owner = "qgis";
      repo = "QGIS";
      rev = "final-${lib.replaceStrings ["."] ["_"] version}";
      sha256 = "11jqj6lavpw9piv0rm8vvbgd99zhcxl6yfjg699wlrjlyf71xac5";
    };
  
    passthru = {
  
negative.code: { mkDerivation, lib, fetchFromGitHub, cmake, ninja, flex, bison, proj, geos, xlibsWrapper, sqlite, gsl
  , qwt, fcgi, python3Packages, libspatialindex, libspatialite, postgresql
  , txt2tags, openssl, libzip, hdf5, netcdf, exiv2
  , qtbase, qtwebkit, qtsensors, qca-qt5, qtkeychain, qscintilla, qtserialport, qtxmlpatterns
  