I have a module, let's call it "SpiderMan". SpiderMan defines a function that contains a function from another module. Let's call this other module "Doctor Octopus".

So of course, SpiderMan will not compile unless it gets that function from Doctor Octopus. (Hey, at least, I didn't use Mister Ed and the characters from Gilligan's Island for module names, okay?).

Now the problem is that Doctor Octopus also calls many functions from SpiderMan. Doctor Octopus must use the SpiderMan module. So both modules need functions from each other.

So I am seeing an error: "Undefined subroutine..." coming from Doctor Octopus. This subroutine is from SpiderMan. I know that SpiderMan is exporting this function. So what's going on? (Note that the function in question is not the one containing the Doctor Octopus function.)

When I do 'perl -cw' on SpiderMan and Doctor Octopus, I get all these "subroutine redefined" warnings... I have a hunch about what's going wrong. But I am unsure how to solve it. Thanks for any insight.

In reply to Undefined subroutine errors by Anonymous Monk

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