Presumably, you've done a use lib qw( /(lib path)/dirAAA ); somewhere prior to running the code in ModuleA, otherwise you wouldn't have gotten there.

One, somewhat hackish, solution is to inspect @INC. 

BEGIN {
    my $lib_to_use;
    foreach my $dir (@INC) {
        $lib_to_use = $dir, last
            if $dir =~ m!dirAAA/?$!;
    };
    $lib_to_use =~ s!dirAAA!dirBBB!;

    use lib $lib_to_use;
}

use ModuleB;

[download]

I'm sure there's a module that does this, but I'm too lazy to look for it.

Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

In reply to Re: use lib between modules by dragonchild
in thread use lib between modules by Anonymous Monk

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