Perl won't run a module twice, but when running a .pm as a script, it doesn't count as module. In other words, your module is fine. It's how you run it that's broken.

Replace
perl -c TestVar.pm
with
perl -ce "use TestPm"
to fix the problem.

However, I think there's a design problem when two modules include each other.

In reply to Re^2: Subroutine redefined by ikegami
in thread Subroutine redefined by Anonymous Monk

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