我们运行的是 CentOS 5.6 系统，想用 php-mcrypt 安装 php53。
然而，这会在 php-common 和 php53-common 之间引入依赖冲突。有没有人有解决这个问题的好方法？
host # yum install php-mcrypt
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* epel: linux.mirrors.es.net
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package php-mcrypt.x86_64 0:5.1.6-15.el5.centos.1 set to be updated
--> Processing Dependency: php-api = 20041225 for package: php-mcrypt
--> Processing Dependency: php >= 5.1.6 for package: php-mcrypt
--> Running transaction check
---> Package php.x86_64 0:5.1.6-27.el5_5.3 set to be updated
--> Processing Dependency: …