I've got bad news: you'll have to test to find out. You need to assemble an instance of every platform you intend to support. Just finding out what was in the Perl source distribution for a given release won't be enough - everyone that packages Perl puts a little extra in and skims off a little fat.

I've been working on an installation system for Bricolage and I've been using VMWare to setup test boxes. It's been a great help but it's still a lot of work.

-sam