openshift/origin-server — pull request #1051 by rmillner (2012-12-10 23:03:07+00:00)
Title: BZ 884865: Do not attempt to install extensions already on the system.

PHP PECL extensions are a mess. Many have compilation issues and most have installation issues. OpenShift Hosted service frequently has to just install PHP extensions on the system to make them available.

If an extension is found on the system; then do not attempt to install it even if there's a better version available from upstream.