系统已经安装了openssl和openssl-devel,但还是碰到错误:
    ./configure: error: SSL modules require the OpenSSL library.

    —with-openssl=/usr/local/openssl是不需要指定的,有—with-http_ssl_module 就可以使用https

    再安装一遍:
    yum -y reinstall openssl openssl-devel