c:\@Work\Perl\monks>perl -wMstrict -le
"BEGIN {
   sub Dumper ();
   }
 ;;
 use Data::Dumper;
"
Prototype mismatch: sub main::Dumper () vs none at C:/Perl/lib/Exporter.pm line 67.
 at -e line 1

c:\@Work\Perl\monks>perl -wMstrict -le
"BEGIN {
   sub Dumper;
   }
 ;;
 use Data::Dumper;
"