linux-kernel - Re: [PATCH] kernel: use the gnu89 standard explicitly

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Message-ID: <20141019210348.GA28144@drone.musicnaut.iki.fi>
Date:	Mon, 20 Oct 2014 00:03:48 +0300
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Sasha Levin <sasha.levin@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kernel: use the gnu89 standard explicitly

Hi,

On Sun, Oct 19, 2014 at 01:05:22PM -0700, Linus Torvalds wrote:
> On Sun, Oct 19, 2014 at 9:07 AM, Sasha Levin <sasha.levin@...cle.com> wrote:
> > gcc5 changes the default standard to c11, rather than gnu89, which
> > makes kernel build unhappy.

(I guess the default will be gnu11 instead of c11.)

> Hmm. Just how unhappy does it make it? Maybe we can instead try to
> make the build happier with some minimal changes? Or is it really
> painful?

Here's one example how it fails: http://marc.info/?l=gcc&m=141349914632010&w=2

It's probably arch-independent as on SPARC I saw a similar failure
(I didn't test any others).

A.
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