Jonas pointed out service discovery should probably not be enabled by 
default, and I've modified the patch accordingly. I've also relocated 
it to <http://www.morth.org/netbsd/getaddrinfo-dns-sd.patch>.

You'll notice there's a new entry for include/netdb.h adding an 
additional AI_SRV flag, and an additional check in _dns_getaddrinfo for 
this flag.
-- 
Pelle Johansson
<morth@morth.org>