MinGW + Boost: undefined reference to `WSAStartup@

below is what I execute

D:\Just4Fun\software\>make -f Makefile.hands stest g++.exe -g -D_WIN32_WINNT=0x0601 -ID:\Boost\boost_1_51_0 -LD:\Boost\boost_1_51_0\stage\lib -LD:\MinGW\lib -lboost_system-mgw46-d-1_51 -lboost_filesystem-mgw46-d-1_51 -lboost_iostreams-mgw46-d-1_51 -lws2_32 -lwsock32 -o TestSerial.exe TestSerial.cpp

below is the result of that

C:\Users\oleg\AppData\Local\Temp\ccXpC7RG.o: In function 'ZN5boost4asio6detail17winsock_init_base7startupERNS2_4dataEhh': D:/Boost/boost_1_51_0/boost/asio/detail/impl/winsock_init.ipp:39: undefined reference to 'WSAStartup@8'C:\Users\oleg\AppData\Local\Temp\ccXpC7RG.o: In function 'ZN5boost4asio6detail17winsock_init_base7cleanupERNS2_4dataE': D:/Boost/boost_1_51_0/boost/asio/detail/impl/winsock_init.ipp:48: undefined reference to 'WSACleanup@0' collect2: ld returned 1 exit status make: *** [stest] Error 1

Below is result of checking libraries regarding to mentioned symobls (I failed to format it in appropriate way)

`d:\MinGW\lib>nm -C libws2_32.a | grep WSAStartup
00000000 T WSAStartup@8
00000000 I imp_WSAStartup@8

d:\MinGW\lib>nm -C libws2_32.a | grep WSACleanup
00000000 T WSACleanup@0
00000000 I imp_WSACleanup@0

d:\MinGW\lib>nm -C libwsock32.a | grep WSACleanup
00000000 T WSACleanup@0
00000000 I imp_WSACleanup@0

d:\MinGW\lib>nm -C libwsock32.a | grep WSAStartup
00000000 T WSAStartup@8
00000000 I imp_WSAStartup@8`

As wee see symbols are existing in the libraries and libraries are on the place referred by the corresponding -L command line options.
So, why "undefined refernce"????

It's very common error, with a very simple solution: Place the libraries you link with after the source and object files.