I have "family" of modules that I'm having trouble testing. Roughly, the hierarchy looks like 
use A::B::C1;
use A::B::C2;
use A::B::C1::D;

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"A" is an acronym for our development group, so all of our perl modules start with that. In A::B::C2 and A::B::C1::D there is a line like 
use A::X;

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What seems to be happening is that A::B and A::B::C2 are loaded from blib/lib, then A::B::C1::D gets loaded from the installed area which is in PERL5LIB. That is also where A::X lives. If I flip the order to the use lines to 
use A::B::C1;
use A::B::C1::D;
use A::B::C2;

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Then A::B::C1::D is loaded from blib/lib and A::B::C2 is loaded from the installed area. I can't find any way to make sure that all three of the packages in this family get loaded from blib/lib. I've tried playing with @INC with no luck. How can I convince Perl to use blib/lib first for all of my modules?

In reply to how to force Build test to load all modules from blib/lib first by rbroberts

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