anchor.diff:      sha256 = "1536f73a3353296d97a25e24f9554edf3e6a48126886f8d21282c3645ecb96a4";
     };
   
  -
     enableParallelBuilding = true;
   
  -  nativeBuildInputs = [ cmake libxml2 libxslt pysideApiextractor pysideGeneratorrunner python sphinx qt4 ];
  +  nativeBuildInputs = [ cmake pkg-config pysideApiextractor pysideGeneratorrunner sphinx qt4 ];
  +
  +  buildInputs = [ python libxml2 libxslt ];
   
     preConfigure = ''
       echo "preConfigure: Fixing shiboken_generator install target."
  
positive.code: { lib, fetchurl, cmake, buildPythonPackage, libxml2, libxslt, pysideApiextractor, pysideGeneratorrunner, python, sphinx, qt4, isPy3k, isPy35, isPy36, isPy37 }:
  
  # This derivation provides a Python module and should therefore be called via `python-packages.nix`.
  # Python 3.5 is not supported: https://github.com/PySide/Shiboken/issues/77
  buildPythonPackage rec {
    pname = "pyside-shiboken";
    version = "1.2.4";
  
    format = "other";
  
  
negative.code:   # gcc6 patch was also sent upstream: https://github.com/pyside/Shiboken/pull/86
    patches = [ ./gcc6.patch ] ++ (lib.optional (isPy35 || isPy36 || isPy37) ./shiboken_py35.patch);
  
    cmakeFlags = lib.optionals isPy3k [
      "-DUSE_PYTHON3=TRUE"
      "-DPYTHON3_INCLUDE_DIR=${lib.getDev python}/include/${python.libPrefix}"
      "-DPYTHON3_LIBRARY=${lib.getLib python}/lib"
    ];
  
    meta = {
      description = "Plugin (front-end) for pyside-generatorrunner, that generates bindings for C++ libraries using CPython source code";
  