linux-kernel - Re: [PATCH] kernel: add support for gcc 5

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Message-ID: <1409889532.2770.30.camel@joe-AO725>
Date:	Thu, 04 Sep 2014 20:58:52 -0700
From:	Joe Perches <joe@...ches.com>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	Aaro Koskinen <aaro.koskinen@....fi>, akpm@...uxfoundation.org,
	mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kernel: add support for gcc 5

On Thu, 2014-09-04 at 23:37 -0400, Sasha Levin wrote:
> On 09/04/2014 07:47 PM, Joe Perches wrote:
> > On Fri, 2014-09-05 at 00:43 +0200, Hannes Frederic Sowa wrote:
> >> > Most statements are already depending on GCC_VERSION, maybe we can just
> >> > unify all gcc specific headers to one, still trying to keep the file
> >> > organized? ;)
> > Maybe something like:
> > 
> > gnu development of gcc will be more frequent and the use of
> > compiler-gcc<major>.h likely will not be convenient anymore.
> > 
> > Integrate the individual compiler-gcc<major>.h files into
> > compiler-gcc.h.
> 
> Please no. We have a similar file we maintain in our team that's supposed to
> do something very similar for kernel versions. It goes all the way back to
> 2.6.9 and it's a *horrible* mess.
> 
> This is how compiler-gcc.h will end up looking in a while.

As gcc options are generally upward compatible,
I don't think it will but there's no great way
to predict the future.

It wouldn't be as complicated as say backports.


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