anchor.diff:        enable_lto = false;
       };
     };
  +
     setup_cfg = writeText "setup.cfg" (lib.generators.toINI {} passthru.config);
  +
     preBuild = ''
       cp "$setup_cfg" ./setup.cfg
     '';
  
positive.code: buildPythonPackage rec {
    version = "3.5.0";
    pname = "matplotlib";
  
    disabled = !isPy3k;
  
  
negative.code:     license     = with licenses; [ psfl bsd0 ];
      maintainers = with maintainers; [ lovek323 veprbl ];
    };
  }
  