Exactly which versions does it work on? Are you checking to see if your require succeeds? Is lock() defined in the require'd file? Can you put in a warn "whoops: lock not defined" if !defined &lock;

There was a change that broke some uses of require() just after 5.8.1, but that was retracted. It's possible you have an aggressive vendor that is including extra changes in their perl release.

In reply to Re: Has the "require" functionality changed in Perl 5.8.1? by ysth
in thread Has the "require" functionality changed in Perl 5.8.1? by Alatar

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