I've upgraded from gcc3.0.2 to gcc3.1 I am creating a shared object whose sources are written in c, that links with a library (xxx.a) that is written in c++ and is also compiled with gcc3.1. when I run nm mysharedobject.so , I see many undefined symbols : _Unwind_XXX.... setting -fnon-call-exceptions does not help. Your help is appreciated. Nir