bikeNomad and I ran into this in his Class::Prototyped. The problem is indeed @ISA caching, and (to my knowledge) it wasn't fixed in 5.6.1. My workaround is:

delete ${"$package\::"}{'::ISA::CACHE::'};

where $package is the name of the package containing the modified @ISA. Of course, you might find that CPAN module interesting...

Update: We ran into the problem while adding to @ISA, so my guess is that any changes are troublesome. It's been a while since I read the source, though.

In reply to Re: dynamic inheritance by chromatic
in thread dynamic inheritance by steves

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