编译安装nginx需要pcre包--with-pcre=<path>，如下提示：

./configure: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option, or install the PCRE library into the system, or build the PCRE library
statically from the source with nginx by using --with-pcre=<path> option.

需要安装pcre的devel包，pcre-devel。使用yum安装即可：

yum -y install zlib zlib-devel openssl openssl--devel pcre pcre-devel