[CentOS] Compiling PHP and MySQL

Hi everyone,

I need to install an older version of PHP - 5.2.16, which is not currently available through an official CentOS repo (as far as I can tell).

In order to fulfill our developer's requirements, I've decided to just compile  PHP and MySql from the source.

Is there a way to find out what are the usual configure options that are used to compile binaries that are available through yum?

Thank you!
Asya