I've created a fresh installation of CentOS 5.6, and installed PHP 5.3 using the php53-* packages from the CentOS repository. Specifically, I've got: php53 php53-cli php53-common php53-devel php53-mysql php53-pdo php53-xml However, I also need to install the mcrypt and apc extensions for my application. CentOS has a pre-built php-mcrypt package, but there is no equivalent php53-mcrypt. The install