今天搭建了一個Eclipse+MinGW的C++開發環境，Eclipse的使用就是方便。
於是，就寫了一個socket程式，MinGW支援winsock2，但到編譯的時候總是報錯：
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這錯一看，要麼是程式沒有載入winsock2.h庫，要麼是程式make的時候出錯。
檢查console連線結果，發現確實是缺少socket的連結引數：-lws2_32.
在eclipse中新增make引數的方法：
右鍵工程 -> properties -> C++ build -> settings -> Tool Settings
在左邊樹形結構中選中 MinGW C++ Linker，此時在右邊的command line pattern就是make時的引數設定，在後面加上-lws2_32就可以了。
再編譯，成功了。
設定的截圖如下：