as you're using "warnings", there is not point calling "perl -w"
There is a difference, from perldoc warnings
The warnings pragma is a replacement for the command line flag -w , but the pragma is limited to the enclosing block, while the flag is global. See perllexwarn for more information.
does everything warnings
does, not the other way around. That being said, it is unlikely the OP wants to enable warnings for use
'd modules (XML::Parser
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