how to write MakeFile

http://www.chinaunix.net/jh/23/408225.html

http://cache.baidu.com/c?m=9f65cb4a8c8507ed4fece763105392230e54f7226183964137c3933fc239045c1b31a6fa79795142c4c50b3440ed5e5d9eab6065367520bc9bdccd179ded9d3f2fff3035004d914062c419d8dc47559c37912afeae6af0ba8163c2b9d2a28e000d9906446d8081da&p=97769a40978a11a058e9dd351c08&user=baidu