On Sun Dec 26 00:14:00 2010, nicholas wrote: > $ ./perl -e 'sub foo :lvalue {$a}; lock &foo' > perl: pp.c:6133: Perl_pp_lock: Assertion `((svtype)((retsv)->sv_flags > & 0xff)) != SVt_PVCV' failed. > Aborted On a non-debugging build: sub lv:lvalue { $x } for(lock &lv){ $_ = "Just another Perl hacker,\n";} print prototype "lv"