编译环境和编译方法
安装编译环境:
#yum install gcc gcc-c++ gcc-g77 flex autoconfig automake bison zlib-devel bzip2-devel ncurses-devel libtool libtool-ltdl openssl openssl-devel pam-devel libtermcap-devel curl-devel libxml2-devel libevent libevent-devel gettext-devel