Any other gotchas moving from 5.005 to 5.8.0?
Don't use 5.8.0. Build perl 5.8.6 from source yourself. RedHat perl 5.8.0 was an unsound release. See, for example:

In reply to Re: Finally! Saying goodbye to perl 5.005 by eyepopslikeamosquito
in thread Finally! Saying goodbye to perl 5.005 by the_slycer

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