"Can't find apr include/ directory"

Hi all,

This was going to be a post asking for help but I just solved it. If
you're building mod_perl2 statically and get:

"Can't find apr include/ directory"

and it's driving you nuts because you're untarring a clean mod_perl, a
clean httpd, and you're making no reference to any existing
directories on the machine so it couldn't possibly be getting confused
by stuff that's already installed.... well think again. I had an
existing installation under /usr/local/apache2/ and as soon as I
trashed it mod_perl2 compiled just fine.

mod_perl-2.0.2
httpd-2.2.3
CentOS 4.2

Regards,

Mark.