PHP 4.3.5 + IMAP

Hello, I'm tryting to install PHP 4.3.5 with IMAP support on my Slackware 8.0 Linux box as an Apache 2 module. This is the command I use to configure PHP: ./configure --with-apxs2=/usr/local/apache2/bin/apxs --with-gettext \ --with-xml --with-mysql --with-mcrypt=/usr --with-zlib=/usr --with-zlib=/usr \ --with-gd=/usr --prefix=/usr/local/php/4.3.5 --with-imap=/usr/local/imap-2002e \ --with-pear=/usr/local/php/pear --enable-ftp --with-dom=/usr The build process doesn't cause any problems at all. However, when I try to start Apache afterwards with 'apachectl start', all I get is Syntax error on line 231 of /usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/libphp4.so into server: /usr/local/apache2/modules/libphp4.so: undefined symbol: mmdfdriver mmdfdriver seems to be a variable defined in mmdf.c of the IMAP c-client. I've tried building PHP with imap-2002e and also with imap-2001.rc1 as suggested by a comment in the PHP online documentation. Both produced the same result. When I compile without IMAP support everything works perfectly. Any help is appreciated. Toby