I can test this on my OpenBSD box if you provide some more information.
  1. Perl version
  2. Config::Std version
  3. Bare minimal runnable example that displays this problem. I can't run the example you provided.
Also, please read the following:
How (not) to ask a question - Only Post Relevant Code

In reply to Re: problem with Config::Std on FreeBSD box? by imp
in thread problem with Config::Std on FreeBSD box? by leocharre

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