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

From: Kristof Provost <kp_at_freebsd.org>
Date: Sun, 29 Sep 2024 09:53:10 UTC

> On 29 Sep 2024, at 04:46, Zhenlei Huang <zlei@freebsd.org> wrote:
> 
> 
> 
>> On Sep 27, 2024, at 6:07 PM, Gary Jennejohn <garyj@gmx.de> wrote:
>> 
>>> On Thu, 26 Sep 2024 14:58:40 -0400
>>> Ian FREISLICH <ianfreislich@gmail.com> wrote:
>>> 
>>> 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
>>> 
>> 
>> This happens now and then because most committers have INET6 enabled and
>> they forget that INET6 is an option and not mandatory.
> 
> Kristof is landing lots of commits from upstream ( OpenBSD ), so we need be patient with him ...
> 
There may have been intermittent breakage, although I always try to avoid that, but main currently just works. 

>> 
>> I don't have INET6 enabled and have reported a number of problems in the
>> source as a result of that.

I strongly advise against running non-default configurations. They’re always less tested (and thus more buggy) and harder to support. 

Only do so if there’s genuinely no alternative. 

Best regards,
Kristof