anchor.diff:    preBuild = ''
       ln -s ${cfg} site.cfg
     '';
  -
  -  # Workaround flakey compiler feature detection
  -  # https://github.com/numpy/numpy/issues/19624
  -  hardeningDisable = [ "strictoverflow" ];
   
     enableParallelBuilding = true;
   
  
positive.code: { lib
  , fetchPypi
  , python
  , buildPythonPackage
  , gfortran
  
negative.code:     sha256 = "1za22ggjxzm7drs2vd15s81ad9rlshk4p7pv7mxcbz4acdiszx6z";
    };
  
    patches = [
      # fix https://github.com/numpy/numpy/issues/19624
      (fetchpatch {
        url = "https://github.com/numpy/numpy/commit/ae279066d6bd253e8675428fac8946938b8d48d9.diff";
        sha256 = "sha256-q8SoF/pMzLI4zYCx2YAZzR31cARlZXerNnBSevBO5pE=";
      })
    ] ++ lib.optionals python.hasDistutilsCxxPatch [
      # We patch cpython/distutils to fix https://bugs.python.org/issue1222585
      # Patching of numpy.distutils is needed to prevent it from undoing the
      # patch to distutils.
  