OpenBSD

Don't forget that Apache is chrooted in OpenBSD. You'll want your virtual host configuration to look something like:

 ServerName   caldav.yourdomain.com Port         80 DocumentRoot /var/www/vhosts/caldav.yourdomain.com/rscds/htdocs php_value    include_path /vhosts/caldav.yourdomain.com/awl/inc php_value    magic_quotes_gpc 0 php_value    register_globals 0 

Also, it's useful to know that you don't have to put your configuration in ; also works, and is probably (at least in my opinion) preferable.