Use of uninitialized value in numeric eq (==) at /home/jthomas/ActivePerl-5.10/site/lib/XML/Twig.pm line 6401 during global destruction.

##</code><code>##

if( $parent->{last_child} == $elt) {  delete $parent->{empty}; $parent->{last_child}=$elt->{prev_sibling}; if( $XML::Twig::weakrefs) { weaken( $parent->{last_child});} ; }