Attempting to build websocket++ for Windows.

g++ -Wall -O2  -I/c/boost/boost_1_52_0//boost chat_server.o chat.o -o chat_server -L/c/boost/boost_1_52_0//stage/lib ../../libwebsocketpp.a /c/boost/boost_1_52_0//stage/lib/libboost_system-mgw46-mt-1_52.a c/boost/boost_1_52_0//stage/lib/libboost_date_time-mgw46-mt-1_52.a c/boost/boost_1_52_0//stage/lib/libboost_program_options-mgw46-mt-1_52.a c/boost/boost_1_52_0//stage/lib/libboost_thread-mgw46-mt-1_52.a /c/boost/boost_1_52_0//stage/lib/libboost_regex-mgw46-mt-1_52.a -lpthread -lws2_32 -lmswsock
chat_server.o:chat_server.cpp:(.text$_ZN5boost6detail17sp_counted_impl_pINS_6threadEE7disposeEv[boost::detail::sp_counted_impl_p<boost::thread>::dispose()]+0x14): undefined reference to `_imp___ZN5boost6threadD1Ev'
chat_server.o:chat_server.cpp:(.text$_ZN5boost14checked_deleteINS_6threadEEEvPT_[void boost::checked_delete<boost::thread>(boost::thread*)]+0x11): undefined reference to `_imp___ZN5boost6threadD1Ev'
chat_server.o:chat_server.cpp:(.text$_ZN11websocketpp4role6serverINS_8endpointIS1_NS_6socket5plainENS_3log6loggerEEEE12start_listenERKN5boost4asio2ip14basic_endpointINSB_3tcpEEEj[websocketpp::role::server<websocketpp::endpoint<websocketpp::role::server, websocketpp::socket::plain, websocketpp::log::logger> >::start_listen(boost::asio::ip::basic_endpoint<boost::asio::ip::tcp> const&, unsigned int)]+0x307): undefined reference to `_imp___ZN5boost6thread12start_threadEv'
collect2: ld returned 1 exit status
make: *** [chat_server] Error 1

Don't mind the double-slashes in the paths, it's from me being sloppy editing makefiles.

I had to compile boost 1.52 using MinGW also.

The linker can't seem to find boost::thread and boost::thread::start_thread.

It looks like boost wants to link to the DLL version of the boost::thread library. See http://www.boost.org/doc/libs/1_52_0/doc/html/thread/build.html for the rather convoluted documentation on how boost can/should be configured to use static or dynamic libraries for boost::thread.

You should be able to solve your problem by linking to the DLL version of the library instead of the static version. You might also be able to solve your problem by defining BOOST_THREAD_USE_LIB when compiling to configure the use of the static thread lib. However I'm not sure whether or not the MinGW compiler supports the automatic tss cleanup that the static library relies on to clean up properly when threads exit.