Shared object "libpq.so.2" not found with PHP4.0.4pl1 and Apache 1.3

I managed to succesfully build a libphp4.so shared library to load in httpd.conf. When I restart Apache and request a page, the server responds with: "Internal Server Configuration Error Syntax error on line 40 of /usr/local/etc/httpd/conf/httpd.conf: Cannot load /usr/local/etc/httpd/modules/libphp4.so into server: Shared object "libpq.so.2" not found" Where do I find libpq.so.2? Am I missing something here? Any help appreciated! - Johan - I use this directive in httpd.conf: LoadModule php4_module modules/libphp4.so I used this configure command: ./configure --enable-track-vars --with-imap=/usr/home/bitsch/tmp/imap-2000a/ c-client --with-mysql --with-apxs=/usr/local/apache/1.3/bin/apxs --with-conf ig-file-path=/usr/home/bitsch/usr/local/etc/httpd/conf --with-system-regex - -disable-debug --enable-trans-sid --enable-versioning --with-ttf --enable-ft p --with-gd=/usr/local --with-pgsql=/usr/home/bitsch/usr/local/pgsql --enabl e-sockets