Hi folks, I'm trying to compile the http server example of boost::asio: http://www.boost.org/doc/libs/1_48_0/doc/html/boost_asio/example/http/server... I'm using gcc 4.6 on ubuntu Linux 11.10. When compiling the reply.cpp, I get the following error: In file included from reply.cpp:13:0: /usr/local/include/boost/lexical_cast.hpp: In function ‘bool boost::detail::parse_inf_nan_impl(const CharT*, const CharT*, T&, const CharT*, const CharT*, const CharT*, const CharT*, CharT, CharT)’: /usr/local/include/boost/lexical_cast.hpp:676:31: error: ‘changesign’ is not a member of ‘boost::math’ /usr/local/include/boost/lexical_cast.hpp:693:31: error: ‘changesign’ is not a member of ‘boost::math’ /usr/local/include/boost/lexical_cast.hpp: In function ‘bool boost::detail::lcast_ret_float(T&, const CharT*, const CharT*)’: /usr/local/include/boost/lexical_cast.hpp:1025:50: error: ‘changesign’ is not a member of ‘boost::math’ I remember having compiled this example some time ago with boost 1.46 or so. Is there some regression in 1.48 that prevents this from compiling? Regards, Philipp