id summary reporter owner description type status milestone component version severity resolution keywords cc 4957 Error about non-defined BOOST_SERIALIZATION_NVP in boost/serialization/variant.hpp Rich McKeever Robert Ramey variant.hpp produces an error about BOOST_SERIALIZATION_NVP not being defined with GCC 4.3.0 on Mac OS 10.6.4 at a high warning level. Including nvp.hpp in variant.hpp, as in the attached patch, resolves it. Bugs closed To Be Determined serialization Boost 1.44.0 Problem fixed