Use strict with plperl

In 8.0 how does one have a plperl function use strict?

If I add "use strict" within the function body I receive an error message: "creation of Perl function failed: 'require'
trappedby operation mask..." 

If I do Create Function X AS .... Language 'plperl' strict volatile the function will compile and execute.  However if
Ido not explicitly declare any variables as my / local / global it still executes which under the strict rule should
not.

Mike