編譯安裝在執行./configure步驟報錯，是因為缺少環境變量
checking for C compiler … not found
./configure: error: C compiler cc is not found
解決辦法
yum -y install gcc yum -y install gcc-c++
./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= option.
解決辦法
yum -y install pcre-devel openssl openssl-devel