5.8.0 broke some binary compatability. Your XS modules will have to be recompiled:

The major reason for the discontinuity is the new IO architecture called PerlIO. PerlIO is the default configuration because without it many new features of Perl 5.8 cannot be used. In other words: you just have to recompile your modules containing XS code, sorry about that.

The perldelta has more info.

Matt

In reply to Re: Undefined symbol: Perl_safemalloc by mojotoad
in thread Undefined symbol: Perl_safemalloc by schumi

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