[Boost-users] boost serialization compile warnings

Hi Does anyone know what these compiler warnings mean? I get them when I try to serialize a non-constant object. If I copy my object into a const, and then serialize, the warnings go away. I also get them from the demo. I looked at check.hpp, and it refers you to the rationale, but I see no explanation of 'object tracking' there. /mnt/saxnot3/bhaddow/boost/include/boost/mpl/print.hpp: In instantiation of ‘boost::mpl::print

’: /mnt/saxnot3/bhaddow/boost/include/boost/serialization/static_warning.hpp:92: instantiated from ‘boost::serialization::static_warning_test’ /mnt/saxnot3/bhaddow/boost/include/boost/archive/detail/check.hpp:98: instantiated from ‘void boost::archive::detail::check_object_tracking() [with T = Josiah::FVector]’

regards Barry