Perl 5.6 contains the ability to only turn on certain warnings, I believe, using some configuration of the

    use warnings;
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pragma. I've not used 5.6, but you can take a look at perllexwarn.

Looking at it, you should be able to use

    no warnings qw/uninitialized/;
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In general, though, you may want to check out *why* you're getting the warnings. I know that sounds obvious, but oftentimes it suggests that you've got an problem, or that you should do more error checking.