安装教程：http://blog.sina.com.cn/s/blog_6735526a0102w1zs.html
802.11p补丁包：https://download.****.net/download/cyqkevin2012/6758693
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1.所有的强制类型转换(int)都改成(long)，因为64位系统会有精度损失error
e.g.
error: cast from ‘packet_t* {aka unsigned int*}’ to ‘int’ loses precision [-fpermissive]
(int)ch, (int)p, (int)(&(ch->ptype_)));
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2.大概有七个错误，修正就通过了