[CentOS] How to handle updates after rebuilding PHP?

Hi,

One of our applications has some very specific requirements regarding 
PHP, so I had to rebuild it to add some functionality that's not 
included in the default configuration.

First thing I removed every PHP-related package that was installed on 
the system:

# yum remove `rpm -qa | grep php`

Then I downloaded the PHP SRPM from 
http://mirror.centos.org/centos/5.1/os/SRPMS/ and installed it.

Next I installed all the build dependencies using yum-builddep.

I edited php.spec according to my needs and then built PHP:

# rpmbuild -bb --clean php.spec

Finally, I installed the resulting packages using 'rpm -ivh', in that order:

- php-common
- php-cli
- php
- php-ldap

Problem: when I run 'yum check-update', Yum wants to update these php 
packages immediately, with some packages coming from [base] (not from 
[updates]). I'm puzzled, because PHP is not in [updates], only in [base].

Now I know I could simply add a line to /etc/yum.conf, something like:

exclude=php-*

But I *do* want to be notified somehow in case there's an update to PHP, 
so I can download the new SRPM from the updates/ directory and then 
rebuild it again.

Any suggestions about this?

Niki

PS: on my desktop I use Arch Linux, where I have some individually 
rebuilt packages. When I do this, I simply increase the build number, so 
my packages don't get squashed, but I get an update notification when a 
new version is available. Maybe this is the way to go, but I don't know 
how I would do this with RPM.