Milter-greylist

Thanks a lot Emmanuel.

	First patch ;-) When you configure both spamd and spf supports, you 
cannot build milter-greylist.

Root rayleigh:[~/milter-greylist-4.1.7] > diff -c spamd.c.orig spamd.c
*** spamd.c.orig        2008-11-18 18:40:32.000000000 +0100
--- spamd.c     2008-11-18 18:40:46.000000000 +0100
***************
*** 52,57 ****
--- 52,58 ----
   #include <sysexits.h>
   #include <syslog.h>

+ #include "spf.h"
   #include "acl.h"
   #include "conf.h"
   #include "queue.h"

	Regards,

	JKB