Hi David, When I run into undefined symbol problems, the first thing I do is make sure the symbol is where I think it is. Use the 'nm' tool to get a dump of where (and what) you expect the symbol to be. It may be something as simple as looking for "Foo", but the C symbol is "_Foo" on this other platform. That's "C mangling" on some platforms. Or it may be something more drastic as looking for "Foo", but the C++ symbol is "_S3FooCCpC" mangled which could stand for "Foo(char, char, char*)" -- and that mangled symbol should be (and is expected to be) C mangled not C++ mangled. HTH, --Eljay