[boost] warning in serialization.hpp with g++ 4.1

Hello! during usage serialization.hpp from boost 1.40 we found such problem: /usr/local/include/boost/serialization/serialization.hpp: In instantiation of ‘void boost::serialization::load_construct_data(Archive&, T*, unsigned int) [with Archive = boost::archive::text_iarchive, T = std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >]’: /usr/local/include/boost/serialization/serialization.hpp:163: instantiated from ‘void boost::serialization::load_construct_data_adl(Archive&, T*, unsigned int) [with Archive = boost::archive::text_iarchive, T = std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >]’ /usr/local/include/boost/serialization/detail/stack_constructor.hpp:58: instantiated from ‘boost::serialization::detail::stack_construct<Archive, T>::stack_construct(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive, T = std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >]’ /usr/local/include/boost/serialization/collections_load_imp.hpp:77: instantiated from ‘void boost::serialization::stl::archive_input_map<Archive, Container>::operator()(Archive&, Container&, unsigned int) [with Archive = boost::archive::text_iarchive, Container = std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > >]’ /usr/local/include/boost/serialization/collections_load_imp.hpp:191: instantiated from ‘void boost::serialization::stl::load_collection(Archive&, Container&) [with Archive = boost::archive::text_iarchive, Container = std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > >, InputFunction = boost::serialization::stl::archive_input_map<boost::archive::text_iarchive, std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > > >, R = boost::serialization::stl::no_reserve_imp<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > > >]’ /usr/local/include/boost/serialization/map.hpp:50: instantiated from ‘void boost::serialization::load(Archive&, std::map<Key, Type, Compare, Allocator>&, unsigned int) [with Archive = boost::archive::text_iarchive, Type = std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, Key = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Compare = std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > >]’ /usr/local/include/boost/serialization/split_free.hpp:58: instantiated from ‘static void boost::serialization::free_loader<Archive, T>::invoke(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > >]’ /usr/local/include/boost/serialization/split_free.hpp:74: instantiated from ‘void boost::serialization::split_free(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > >]’ /usr/local/include/boost/serialization/map.hpp:70: instantiated from ‘void boost::serialization::serialize(Archive&, std::map<Key, Type, Compare, Allocator>&, unsigned int) [with Archive = boost::archive::text_iarchive, Type = std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, Key = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Compare = std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, Allocator = std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > >]’ /usr/local/include/boost/serialization/serialization.hpp:133: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > >]’ /usr/local/include/boost/archive/detail/iserializer.hpp:170: instantiated from ‘void boost::archive::detail::iserializer<Archive, T>::load_object_data(boost::archive::detail::basic_iarchive&, void*, unsigned int) const [with Archive = boost::archive::text_iarchive, T = std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, report_impl::CollectInfo> > >, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > > >]’ /usr/local/include/boost/serialization/serialization.hpp:94: warning: unused parameter ‘ar’ Patch to fix this warning attached. -- Yours sincerely, Anton Ivanov (ai@drweb.com)