Problems with mcal in rc1

Hello, After successfully configuring with; ./configure --disable-inline --with-apxs=/usr/sbin/apxs --enable-versioning --with-msql=/usr/local/Hughes --with-pgsql=/usr/include/pgsql --with-ftp --with-zlib --with-xml --with-mysql --with-mcrypt=/usr/local/lib make produced a ton of warnings, in what looked like mostly mysql stuff. After make install, apachectl produces: Cannot load /usr/lib/apache/libphp4.so into server: /usr/lib/apache/libphp4.so: undefined symbol: dt_weekofyear /usr/sbin/apachectl start: httpd could not be started. Removal of the --with-mcal switch cures the problem. Apache 1.3.12 PHP3.0.15 PHP4.0RC1 (as concurrent modules) mysql 3.22.27 from rpms (note the --with-mysql flag has no path) libmcal - cvs from March 4, 00. mcal drivers: 0.6 Any ideas would be appreciated. There was no provision in the bug db for RC1 reports, though I'm not entirely sure this is a php issue. Thanks, Mike