1.在执行make的时候出现如下错误：
In file included from /root/yaf-2.1.2/yaf_router.c:28:
/usr/include/php/ext/pcre/php_pcre.h:29:18: error: pcre.h: No such file or directory
In file included from /root/yaf-2.1.2/yaf_router.c:28:
/usr/include/php/ext/pcre/php_pcre.h:45: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
/usr/include/php/ext/pcre/php_pcre.h:46: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
/usr/include/php/ext/pcre/php_pcre.h:52: error: expected specifier-qualifier-list before ‘pcre’
make: *** [yaf_router.lo] 错误 1
centos下面解决办法：# yum install pcre-devel
ubuntu下面解决办法：
sudo apt-get update
sudo apt-get install libpcre3 libpcre3-dev
你可能还需要安装
sudo apt-get install openssl libssl-dev