In dev-php/mod_php/mod_php-4.2.1-r4, pkg_config() calls apacheaddmod, but doesn't update /etc/conf.d/apache to add "-D PHP4" to the APACHE_OPTS environment variable. /etc/apache/conf/apache.conf is set up by default not to load the module unless PHP4 is set.
ryan this is proper behaviour. the /etc/conf.d/apache file should **NOT** be getting programatically rewritten. im closing this is invalid.