PHP install for Litespeed

[netjess]

I am having real time trying to get PHP installed with lsws.
I keep getting erros like ac_fn_c_try_link: not found

I have read http://www.litespeedtech.com/support...i:troubleshoot

and several other threads regarding the PHP install. This is on a barebones install. I installed the OS from start, Ubuntu 10.4.2. Installed MySQL, and Litespeed. I have a application that errors stating that it requires PHP 5.2 or greater so I try to compile via Litespeed admin interface and fight with many errors. I try from cli as per the above instructions and I still cannot get it to install.
I am running this via sudo.
Final line of install failure reads:
./configure: 12050: checking for dirent.h that defines DIR... : not found
eval: 1: Bad substitution

Thanks for any help.