#① yum install gcc gcc-c++ libicu libicu-devel libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel curl curl-devel enchant-devel libjpeg-devel libpng-devel libXpm-devel freetype-devel gmp-devel net-snmp-devel libmcrypt libmcrypt-