PHP 4.2.1 / Apache

HELLO, I just installed PHP 4.2.1. I am using a Redhat 7.3, installed as server with Apache. My problem is I can t compile it as a module for Apache : ./configure --with-apache=/usr/include/apache configure: error: Invalid Apache directory - unable to find httpd.h under /usr/include/apache But hhtpd.h is really under /usr/inclu/apache [root@localhost php-4.2.1]# slocate httpd.h /usr/include/apache/httpd.h Any idea ? David. The information contained in this e-mail message may be privileged and confidential information and is intended only for the use of the individual and/or entity identified in the alias address of this message. If the reader of this message is not the intended recipient, or an employee or agent responsible to deliver it to the intended recipient, you are hereby requested not to distribute or copy this communication. If you have received this communication in error, please notify us immediately by telephone or return e-mail and delete the original message from your system.