weaken is only available with the XS version of Scalar::Util at /usr/lib/perl5/site_perl/5.8.8/XML/Elemental/SAXHandler.pm line 10 BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.8/XML/Elemental/SAXHandler.pm line 10. Compilation failed in require at /usr/lib/perl5/site_perl/5.8.8/XML/Elemental.pm line 15.