The Debian way of handling ParserDetails.ini Use update-perl-sax-parsers(8) instead. . * SAX.pm: the meat of the modifications + add XML::SAX->save_parsers_debian(), used by update-perl-sax-parsers + disable XML::SAX->save_parsers() with a helpful error message for users trying to install SAX parsers manually from CPAN * Makefile.PL: Don't try to modify ParserDetails.ini when building the package * t/01known.t, t/99cleanup.t: Skip tests related to XML::SAX->save_parsers()