A easy way to fix this would be to put the serialization code in the source file instead of the header file but I can't get this to work... There is no reason why this shouldn't work. Invest some effort figuring out why it won't link. Check namespaces. Robert Ramey "Fred Lupien" <fred.lupien@gmail.com> wrote in message news:32e6d6bf0709300738u77850377t2bf40ec5501b882f@mail.gmail.com... Hi, I am using the boost serialization library in a personal project and ran into a recursive include problem. Class A serialize an object of class B and class B also serialize an object of class A. So class A must be a complete type in class B and class B must be a complete type in class A, hence the recursive include problem. I always end up with unresolved externals if the body of my serialization functions are not within the header file. Any way around this beside switching to non-intrusive serialization? thanx! -- Frédérick Martel-Lupien Étudiant en Génie Informatique Université de Sherbrooke fred.lupien@gmail.com ------------------------------------------------------------------------------ _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users