Description:
------------
On my CentOS 4.1 box running on an Opteron (AMD64) I installed mysql and mysql-devel from the CentOS repos
The libraries are installed in /usr/lib64

I have the following configure command for php 5.0.5


./configure --prefix=/usr/local/site/php50 \
            --with-apxs2=/usr/local/site/ap20/bin/apxs \
            --disable-ipv6 \
            --with-mysql \
            --enable-dba \
            --with-zlib \
            --with-curl \
            --with-openssl \
            --enable-sqlite-utf8

The output just before configure fails is

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.



Reproduce code:
---------------
Run the configure command on a CentOS 4.x distro on an AMD64 box

Expected result:
----------------
mysql should be configured correctly
--with-mysqli takes an argument which is the location of mysql_config. On CentOS 4.1/x86-64, php-5.0.5 configures/compiles correctly if --with-mysqli is used but fails if --with-mysql is used