編譯安裝nginx須要pcre包，未安裝會有以下提示：nginx
./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.
須要安裝pcre的devel包，pcre-devel。使用yum安裝便可：（如下命令還帶有ssl、zlib等依賴的安裝）ui
yum -y install zlib zlib-devel openssl openssl--devel pcre pcre-devel