MingW上编译WinSocket程序undefined reference to `WSAStartup@8'报错的解决办法

在Mingw stdio上编译Windows Socket程序经常出现这样的错误

undefined reference to `inet_addr@4'
undefined reference to `gethostbyname@4'
undefined reference to `WSAGetLastError@0'
undefined reference to `inet_ntoa@4'
undefined reference to `WSAStartup@8'
undefined reference to `inet_ntoa@4'
undefined reference to `socket@12'
undefined reference to `htons@4'
undefined reference to `bind@12'
undefined reference to `listen@8'
undefined reference to `accept@12'
undefined reference to `recv@16'
undefined reference to `send@16'
undefined reference to `shutdown@8'
undefined reference to `closesocket@4'
undefined reference to `closesocket@4'
undefined reference to `WSACleanup@0'

解决办法是

进入Project->Settings...->Link，在Extra linking options:一栏中加上-lwsock32