Milter-greylist

Recently, trying to build milter-greylist(and -devel) on FreeBSD 9.1 
with libspf2 has resulted in:

In file included from /usr/local/include/spf2/spf_server.h:22,
                 from /usr/local/include/spf2/spf.h:27,
                 from spf.c:311:

/usr/local/include/spf2/spf_dns.h:85: error: conflicting types for 
'ns_type'

/usr/include/arpa/nameser.h:301: error: previous declaration of 
'ns_type' was here *** [spf.o] Error code 1

Digging a bit deeper I noticed that libSPF2's spf_dns.h had:

/* XXX This should use a more sensible define. */
#if !defined( HAVE_NS_TYPE )

Adding -DHAVE_NS_TYPE to milter-greylist's main Makefile or adding:

#ifdef __FreeBSD__
#define HAVE_NS_TYPE
#endif

to milter-greylist's spf.c around line 62 resolves the problem. As far 
as I know this is FreeBSD + libSPF2 problem only (it likely effects 
FreeBSD as far back as 7.x).

Cheers,

John