If you use warnings; you can use no warnings qw(foobar); in a block to turn off the foobar type warning. So you could do:
no warnings qw(uninitialized);
Or you could check your code, i.e.:
# so it's not undefined: $foo = 0 unless (defined $foo);
I put a big write up on my scratchpad for somebody about using use warnings for fine grained control. Check it out if you're interested.
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