anchor.diff:      sha256 = "0gpvdrayam4qvpqvz0911nlyvf7ib3slsyml52qx172vhpldycgs";
     };
   
  -  CXXFLAGS = stdenv.lib.optionalString stdenv.cc.isClang "-std=c++11";
  +  CXXFLAGS = lib.optionalString stdenv.cc.isClang "-std=c++11";
   
     nativeBuildInputs = [
       gdal_2 # for gdal-config
  
positive.code:            and not test_*_wheel"
    '';
  
    meta = with stdenv.lib; {
      description = "OGR's neat, nimble, no-nonsense API for Python";
      homepage = http://toblerity.org/fiona/;
      license = licenses.bsd3;
  
negative.code: { stdenv, lib, buildPythonPackage, fetchPypi, isPy3k, pythonOlder
  , attrs, click, cligj, click-plugins, six, munch, enum34
  , pytest, boto3, mock, giflib
  , gdal_2 # can't bump to 3 yet, https://github.com/Toblerity/Fiona/issues/745
  }:
  
  