The only time i have seen prototypes actually being recognized is with mod_perl. In mod_perl, you can prototype your handlers:

sub handler ($$) {
    my ($self,$r);
    # yadda yadda
}
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This tells mod_perl that your handler is really a method handler, and in return, mod_perl will hand you "both the handler() method's calling class and the Apache request object." (from the mod_perl Developer's Cookbook).

But other than that, i never use prototypes.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)