http://www.perlmonks.org?node_id=932256


in reply to Re^4: Is there a way to compare strings without using an array? (say)
in thread Is there a way to compare strings without using an array?

use feature qw( say ); or equivalent is required for backwards compatibility reasons. Many scripts and modules already had a sub named say when say was added to Perl, so it's not available by default in order to avoid breaking these scripts and modules.