Module Loading Error: libexec/libphp4.so: undefined symbol: sfstderr

I've just tried to install PHP 4.2.1, upgrading from 4.1.2 (confusing numbers I know.) After successfully building and installing with no errors, with the following config line: ./configure --with-mysql=/usr/local --with-gettext --with-apxs=/usr/local/apache/bin/apxs --with-imap=/root/imap-2001a --with-ftp --with-gd --with-png --with-jpeg As I said, it builds without issue, however upon restarting Apache, I get the following: Syntax error on line 208 of /usr/local/apache/conf/httpd.conf: Cannot load /usr/local/apache/libexec/libphp4.so into server: /usr/local/apache/libexec/libphp4.so: undefined symbol: sfstderr /usr/local/apache/bin/apachectl start: httpd could not be started This was also an issue with PHP 4.2.0 when I tried to build with GD support, however it appears PHP 4.2.1 does it even without GD. I reverted to 4.1.2 because of this, however I would really like to get a newer version going, even if it means going to 4.2.0 without GD support. ~ I'm running Slackware 8.0 with Glibc 2.1. If anyone has anything to contribute, would be much appreciated. Thanks. -- Keenan Tims ktims@gotroot.ca