Here's an example of why that warning comes:

use strict;
use warnings;


sub this {
    print "Hello world!\n";
}

sub this {
    print "Goodbye world!\n";
}


this();
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If you define a subroutine, and then define it again later, you get a warning. I happen to think that's a good thing. I recommend that if you want to get rid of the warning you get rid of it by not doing what it's warning you about.

But if you really do have a good reason for defining the same subroutine twice, and you just want to squelch it, add this line in the lexical scope where the sub is being redefined:

no warnings qw/redefine/;
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