How to compile PHP extensions on OS X 10.5

[dobomode]

I am trying to compile a PHP extension on OS X 10.5, but was not able to do this properly (the extension failed loading:

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20060613/clips.so' - (null) in Unknown on line 0

Is there a default process/method of installing PHP extensions on Leopard? Any advice would be greatly appreciated.

Cheers!