PHP 5 - Apache module won't load

Hi.
Any help with the following PHP module problem is greatly appreciated.
Environment; Mac OS 10.2 / PHP 5.0.2 / Apache 2.0.52


--------
I have just made PHP5 for the first time on my Mac OS X dev server.
- works fine on its own.

I have also just made Apache 2
- works fine without PHP module.

However; Loading the php5_module into the Apache config throws an error and
Apache will not start!

This is the standard httpd.conf line automatically added by apxs2;
 --------
 LoadModule php5_module libexec/apache2/libphp5.so
 --------

Starting Apache or running configtest;
shows SYNTAX OK and then shows the following error.
 --------
 $ apachectl configtest
 Syntax OK
 dyld: /usr/local/apache2/sbin/httpd Undefined symbols:
 _crc32
 _deflate
 _deflateEnd
 _deflateInit2_
 _gzclose
 _gzdopen
 _gzopen
 _gzread
 _gzrewind
 _gzwrite
 ./apachectl: line 100:   527 Trace/BPT trap          $HTTPD -t
 --------



Looks like the error might be to do with zlib [?]
My zlib vesion is 1.2.1 and compiled into PHP5 just fine.

I have read the warnings re Apache2/PHP, but it should still start up!

Any ideas greatfully receieved.




My configs below;


 # ----------------------------
 # APACHE 2.0.52 CONFIGURATION.
 #
 $ ./configure \
   --enable-layout=Custom \
   --with-mpm=prefork  \
   --with-ssl=/usr/src/ssl/openssl-0.9.7e \
   --enable-ssl=static \
   --enable-mods-shared=most


 # ----------------------------- 
 # PHP 5.0.2 CONFIGURATION
 #
 $ ./configure \
   --prefix=/usr/local/php5 \
   --with-xml --with-libxml --with-libxml-dir=/usr/local/php \
   --with-mysql=/usr/local/mysql \
   --with-zlib --with-zlib-dir=/usr/lib \
   --enable-ftp \
   --with-apxs2=/usr/local/apache2/sbin/apxs