Binary Expressions

I was having some problems with my web site so I went off to check my Apache HTTPD error_log and found three warning messages logged.

Apache HTTPD error_log
/usr/sbin/httpd:/usr/lib/apache/modules/libphp4.so: /usr/local/lib/libmysqlclient.so.12.0 : WARNING: symbol(client_errors) size mismatch, relink your program
/usr/sbin/httpd:/usr/lib/apache/modules/libphp4.so: /usr/local/lib/libmysqlclient.so.12.0 : WARNING: symbol(default_directories) size mismatch, relink your program
/usr/sbin/httpd:/usr/lib/apache/modules/libphp4.so: /usr/local/lib/libmysqlclient.so.12.0 : WARNING: symbol(globerrs) size mismatch, relink your program

After some time of research and with no solution, I decided to mention the problem in Midgard IRC channel. With Piotras comment, I quote “TheWarden: php was compiled with different version of mysql libraries”. So with that said off I went to re-install PHP v4.3.11 but this time configure it with –with-mysql=/usr/local so the correct MySQL libraries would be used. If –with-mysql is not used PHP will use it’s own built in MySQL libraries. I double checked my Apache HTTPD error_log and now the warnings are no longer present.