Any suggestions on how to diagnose the problem?

Start from scratch, try with http://search.cpan.org/CPAN/authors/id/D/DO/DONGXU/Audio-TagLib-1.50_01.tar.gz.

Something is going wrong with the XS generation, some file is not being included....all the test failures are about methods/symbols like new not being found.

Seeing how ppport.h is version 3.06, and the latest available is Devel-PPPort-3.19_02, you should update that first and run perl ppport.h. This has a good chance of fixing the problem ( or revealing the real problem), since apparently Audio-TagLib works for the author with perl5.8.7 (which I infer from the authors ppport.h).

In reply to Re: problem finding symbol in XS-created .so by Anonymous Monk
in thread problem finding symbol in XS-created .so by geoffleach

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