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Did you compare the code? It isn't much code at all, so I'd think that should be your first approach.

The minor mistake was lack of support for modules like D'oh and Acme::Don't (hence the emphasis).

but of course I want to avoid duplicate %INC checks, so could you please explain?

I'm at a loss. What don't you understand about duplicate %INC checks when comparing my code examples to yours?

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