[Exim] Procmail LDA

I would like to use Procmail as my LDA, but I can find no definitive answer
on how to set this up. The examples that I have seen all use "-d" for
delivery, but I've heard that using "-d" causes procmail to generate non-
RFC-compliant messages. So what, then, is the recommended method for
setting up procmail as the LDA?

ahp