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From: Phil Sutter <phil@nwl.cc>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [iptables PATCH] nft: Use ARRAY_SIZE() macro in nft_strerror()
Date: Thu, 24 Oct 2019 11:51:01 +0200	[thread overview]
Message-ID: <20191024095101.GQ26123@orbyte.nwl.cc> (raw)
In-Reply-To: <20191024092903.sqvoxwwuflk2h4cn@salvia>

Hey,

On Thu, Oct 24, 2019 at 11:29:03AM +0200, Pablo Neira Ayuso wrote:
[...]
> If gcc is already checking for this. Warning should be fine.
> 
> Regarding -Werror, we would at least need to keep the autogenerated C
> code by bison away from it.

In nftables there is libparser_la_CFLAGS which holds quite some
exclusions already and could be used to pass -Wno-error as well. (Maybe
a good idea to add this regardless of whether we set -Werror by default
or not.)

> IIRC I enabled this in conntrack-tools long time ago, and I started
> getting reports on it breaking compilation with new gcc versions that
> were actually spewing new warnings. That was stopping users to install
> latest, probably -Werror is too agressive?

Yes, I wasn't completely serious. Breaking users' builds for things they
may not be in control of is not the best idea. We could instead add a
configure option to enable strict mode, but checking for warnings is
something I usually do so probably not that important after all.

Cheers, Phil

  reply	other threads:[~2019-10-24  9:51 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-18 15:51 [iptables PATCH] nft: Use ARRAY_SIZE() macro in nft_strerror() Phil Sutter
2019-10-23 11:20 ` Pablo Neira Ayuso
2019-10-23 11:23   ` Pablo Neira Ayuso
2019-10-23 12:16     ` Phil Sutter
2019-10-23 20:41       ` Pablo Neira Ayuso
2019-10-24  8:45         ` Phil Sutter
2019-10-24  9:29           ` Pablo Neira Ayuso
2019-10-24  9:51             ` Phil Sutter [this message]
2019-10-24 10:01               ` Pablo Neira Ayuso

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