I'm trying to clear up the last remaining failures in the Graph library for 1.34.0, but one failure with the Sun compiler has me completely baffled. The error itself looks like this: "../../../boost/archive/detail/oserializer.hpp", line 566: Error: Illegal value for template parameter. "../../../boost/archive/detail/oserializer.hpp", line 566: Error: The type "boost::STATIC_ASSERTION_FAILURE<boost::archive::check_tracking<boost::a djacency_list<boost::vecS, boost::vecS, boost::undirectedS, vertex_properties, edge_properties, boost::no_property, boost::listS>>::value>" is incomplete. "../../../boost/archive/detail/oserializer.hpp", line 566: Error: Illegal value for template parameter. "../../../boost/archive/detail/oserializer.hpp", line 566: Error: The type "boost::STATIC_ASSERTION_FAILURE<boost::archive::check_tracking<boost::a djacency_list<boost::vecS, boost::vecS, boost::undirectedS, vertex_properties, boost::no_property, boost::no_property, boost::listS>>::value>" is incomplete. 4 Error(s) detected. The failure is also shown here: http://tinyurl.com/zarxo Both the serialization and the graph libraries work almost flawlessly with this compiler, but in this case it appears that the compiler just isn't picking up the partial specialization for tracking_level (in boost/graph/adj_list_serialize.hpp). I tried dropping in a partial specialization of check_tracking and the compiler isn't finding that either. Anyone have any ideas? Workarounds? Cheers, Doug