Historically, mysql has been both an external extension, and a built-in part of the source, depending on the version of PHP. Your current experience would indicate that it's only external in 5.2.8, but I cannot confirm nor deny that. How is MySQL installed? If it's rpm, do you have mysql-devel or whatever also installed? You need this to get /usr/include/mysql* so PHP can link to your /usr/lib/mysql* files. If you ask for MySQL, but don't provide the headers, ./configure MAY be trying to use an old internal built-in mysql source from php source tree. This is just a theory. less config.log /mysql will tell you more accurately than anything what happened where -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php