[PHP-INSTALL] undefined symbol: zend_qsort

Hello, I'm having trouble getting apache to load libphp5.so - when I attempt to start apache, I get the following error message: httpd: Syntax error on line 53 of /usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/libphp5.so into server: /usr/ local/apache2/modules/

[PHP-INSTALL] undefined symbol: zend_qsort

Hello, Apologies if this sent twice, but I don't think the first one went through. I'm having trouble getting apache 2.2 to load libphp5.so - when I try to start up apache, I get the following error message: [EMAIL PROTECTED] php-5.1.1]# apachectl start httpd: Syntax error on line 53 of /