Problem: "Unable to load dynamic library ... imap.so"

Hello all: I configured and installed PHP (as a static Apache module) on my Redhat 7.1 system, using RPM source. I did a 'configure' and 'make', and then installed the PHP and Apache RPMs. Everything seems to be working, except for a few options. I configured for IMAP, Mcal, and Mycrypt support, but test.php tells me that they are NOT working. Of most concern to me is the IMAP functionality, because I want to run Imp. I get this message in /var/log/messages: httpd: PHP Warning: Unable to load dynamic library '/usr/lib/php4/imap.so' - /usr/kerberos/lib/libcom_err.so. : shared object not open in Unknown on line 0 The imap.so file listed above *does* exist. Any ideas what might be wrong? I've tried building it all twice now, with the same result. My configure parameters: ./configure --with-apache=../apache_1.3.19 \ --with-openssl \ --with-zlib \ --with-aspell \ --with-curl=/usr/include/curl \ --with-gettext \ --with-imap=../imap-2000c \ --with-imap-ssl \ --with-ldap \ --with-mcal=../libmcal \ --enable-ftp \ --with-mcrypt \ --with-mysql=/usr/local/mysql \ --with-pgsql=/usr/lib/pgsql \ --with-pspell \ --with-mm Thanks! Erik