Even if you're unable to upgrade your system perl, you ought to be able to install a newer perl in your home directory using perlbrew.

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: Perl 5.10 eval($string) memory leak by tobyink
in thread Perl 5.10 eval($string) memory leak by fuzzmonkey

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