in reply to Cross-developing in 5.005 and 5.6 (code)

I found that by wrapping the individual use's in the eval inside of quotes worked: 
BEGIN { 
  eval "use warnings"; 
  eval "use strict"; 
  eval "use Carp"; 
}

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(this is on a 5.005_03 system).

In Section Seekers of Perl Wisdom