Rebuilding php 5.1.4 to access Oracle error

[straygrey]

I need to rebuild PHP on my Ubuntu 6.06 system to include --with-oci8(Oracle access) but when using the following command I get errors.
sudo ./configure --with-apxs=/usr/bin/apxs --with-libxml-dir=/usr/share/doc/ --with-mysql=/usr/local/src/mysql-5.1.11-beta-linux-i686/ --with-zlib --with-zlib-dir=/home/alf/download/tmp/zlib-1.2.3/ --with-oci8

checking for MySQL support... yes
checking for specified location of the MySQL UNIX socket... no
checking for MySQL UNIX socket location... no
checking for mysql_close in -lmysqlclient... no
checking for mysql_error in -lmysqlclient... no
configure: error: mysql configure failed. Please check config.log for more information.

I do have MySQL 5.0.22 installed and running so am loath to rebuild the source I have in /usr/local/src/mysql-5.1.11-beta-linux-i686/

Suggestions please.