Hello, I'm trying to build a project that was developed for Ubuntu on a Mac OS X 10.5. Building goes well for a long while, but then I get the following error: boost::python::converter::arg_to_python<unsigned char>::arg_to_python(unsigned char const&)in trackerbasewrapper.os "_PyObject_IsTrue", referenced from: boost::python::api::object_operators<boost::python::api::object>::operator _object* (boost::python::api::object::*)() const() constin trackerbasewrapper.os "_PyExc_KeyError", referenced from: _PyExc_KeyError$non_lazy_ptr in trackerbasewrapper.os "_PyObject_IsInstance", referenced from: boost::python::enum_<FeatureUsage>::convertible_from_python(_object*) in trackerbasewrapper.os "_PyExc_UserWarning", referenced from: _PyExc_UserWarning$non_lazy_ptr in trackerbasewrapper.os "_PyBool_FromLong", referenced from: boost::python::to_python_value<bool const&>::operator()(bool const&) constin trackerbasewrapper.os ld: symbol(s) not found collect2: ld returned 1 exit status scons: *** [trackerbase/libtrackerbasewrapper.dylib] Error 1 scons: building terminated because of errors. Is this a symbol that still needs to be added for the Max OS X codebase? Thanks, Michel -- Dr. Michel Valstar, Research Associate http://www.doc.ic.ac.uk/~mvalstar Department of Computing Imperial College London 180 Queens' Gate London SW7 2AZ, U.K. tel.: +44 20 7594 8234 fax: +44 20 7581 8024