[Boost-users] [Serialization] [1.42]Don't understand warning with export

Happy new year ! Dear boost users, I don' understand this warning (g++, boost v1.42): "export.hpp:129: warning: type qualifiers ignored on function return type" -------------------------- export.hpp -------------------------- template<class T> struct guid_initializer { ... (L.129) const void export_guid(mpl::true_) const { } ... }; ----------------------- This warning happens when i use the BOOST_CLASS_EXPORT macro. Any idea ? Thanks, Damien.