That can be fixed as follows by reordering the statememnts, or by wrapping the my (and therefore the sub) in a BEGIN block:

BEGIN {
   my $foo = "bar\n";

   sub print_foo {
      print $foo;
   }
}

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In reply to Re^2: Use of uninitialized value by ikegami
in thread Use of uninitialized value by Anonymous Monk

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