compile php 5.1.6 on centos 4.5

[cape]

I just moved my invison board to new server i am getting error

IPB WARNING [2] preg_match: internal pcre_fullinfo() error -3 (Line: 314 of /sources/ipsclass.php)
Could not determine your IP address


invision support is telling me to update php to 5.2.X

or
compile php

--with-pcre-regex

rather than

--with-pcre-regex=/something/something


any ideas how i compile this?