Is INET6 a required option these days? (kernel build failure)

[Ian FREISLICH]

Lately there have been a couple of commits that fail to build because v6 being compiled in despite INET6 being undefined. I think the latest is 905db4aa88775865097714c170f4503da385747c.

/usr/src/sys/netpfil/pf/pf.c:8762:38: error: no member named 'icmp6' in 'union pf_headers'; did you mean 'icmp'?
 8762 |                 if (!pf_pull_hdr(m, *off, &pd->hdr.icmp6, icmp_hlen,

Ian