修改去掉一下makefile里面的-WX选项，该选项会在编译的时候把警告当作错误。
https://blog.csdn.net/zqw_4181/article/details/93196839
https://blog.csdn.net/weixin_30788619/article/details/97338241
https://blog.csdn.net/kenny25/article/details/39399689
https://zyzsdy.com/article/85
https://blog.csdn.net/lqzkcx3/article/details/82848354
https://www.jianshu.com/p/cc008d24ad82
https://www.cnblogs.com/schips/p/12309174.html
http://bashell.nodemedia.cn/archives/build-nginx-rtmp-module-on-windows.html
