Something that's been frustrating me lately is that I keep getting the "Undefined subroutine" error without being able to quite figure out why. It usually happens when module A imports module B (both mods here having package names), and module B imports module C (which does NOT have an explicit package name). If I write a script that calls B directly, it'll run fine, but I get the runtime error if the script calls A (which in turn calls B). I've monkeyed around with Exporter, which hasn't helped, and I'd rather not have to give module C its own package space (because it's already in use in a lot of different scripts).

(I'm not posting any code because 1. there are a jillion lines total by now, and 2. some proprietary stuff involved.)

I can't figure out what else to do, so I turn to you professionals.

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