this thread might be interesting to you, in particular...

PERL_DL_NONLAZY causes unresolved symbols in the .so file to be error a load time rather than when called.

UPDATE: Here's another great link curtosy of google

And another particularly crafty search

In reply to Re: PERL_DL_NONLAZY=1 by hossman
in thread PERL_DL_NONLAZY=1 by Anonymous Monk

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