anchor.diff:        homepage = https://github.com/grantm/XML-SAX-Base;
         license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
       };
  -    buildInputs = [ ExtUtilsMakeMaker TestSimple13 ];
     };
   
     XMLSAXWriter = buildPerlPackage {
  
positive.code:       url = mirror://cpan/authors/id/P/PE/PERIGRIN/XML-NamespaceSupport-1.12.tar.gz;
        sha256 = "1vz5pbi4lm5fhq2slrs2hlp6bnk29863abgjlcx43l4dky2rbsa7";
      };
      propagatedBuildInputs = [ constant ];
      buildInputs = [ ExtUtilsMakeMaker ];
    };
  
    XMLParser = buildPerlPackage {
  
negative.code:     postInstall = ''
        perl -MXML::SAX -e "XML::SAX->add_parser(q(XML::SAX::PurePerl))->save_parsers()"
        '';
    };
  
    XMLSAXBase = buildPerlPackage {
  