a static once-generated version instead. We know we have IPv6
headers available here.
The probing was problematical for several reasons:
o it probed the host headers, not the headers in the build or DESTDIR
tree (could be fixed in another way)
o the probe_ipv6 script mucks with PATH, which would be problematical
for cross compilation.
dig/host/whatever assumes that it is using BIND8 code. mixing BIND4 in
libc with BIND8 code will result in very strange behavior, or program panics.
it is not necessary for dig/host/whatever to obey /etc/nsswitch.conf, actually
dig(1) is explicit about it.
now dist/bind is almost clean BIND822p5, with the following exception:
- /etc/irs.conf will never be visited when running BIND8 toolchain,
to make it less complex. the search order for BIND8 toolchain is
defined in dist/bind/lib/irs/gen.c:default_map_rules().
and usr.sbin/bind compiles them in BSD make framework, with no tricks at all.
