[YBA] kernel compile errors with GCC >= 4.6

[Jonathan Ben Avraham]

Hi Oleg,
Thanks.
The quesiton relates to this problem:
http://unix.stackexchange.com/questions/35607/cross-lfs-ppc-error-while-compiling/35621#35621

  - yba


On Wed, 4 Apr 2012, Oleg Goldshmidt wrote:

> Date: Wed, 4 Apr 2012 12:49:44 +0300
> From: Oleg Goldshmidt <pub at goldshmidt.org>
> To: Jonathan Ben Avraham <yba at tkos.co.il>
> Cc: ILUG <linux-il at cs.huji.ac.il>
> Subject: Re: [YBA] kernel compile errors with GCC >= 4.6
> 
> 
> 
> On Wed, Apr 4, 2012 at 10:03 AM, Jonathan Ben Avraham <yba at tkos.co.il> wrote:
>       Dear linux-il colleagues,
>       GCC 4.6 introduced many new warnings that cause -Werror to stop the compilation for some platforms, such as powerpc, in various files.
> 
> 
> Oh, I didn't even know they finally introduced -Werror... Good.
> 
> If it is in the way maybe KCFLAGS=-Wno-error or similar may serve as a workaround? Or KBUILD_ENABLE_EXTRA_GCC_CHECKS="" ?
> 
> Cf. Documentation/kbuild/kbuild.txt
> 
> You didn't say what kernel version - I just went to LXR for the latest.
> 
>
>       My question is in general, is there somewhere where the relationship between kernel version and gcc version (or other compiler version) is made explicit?
> 
> 
> Not that I know of. The minimal versions of everything needed are in Documentation/Changes. I guess you are not interested in "minimal".
> 
> I would be very much surprised if the kernel could not be built with gcc-4.6 - this is stock on Fedora, so lots of people must be using it. Maybe not on PowerPC,
> though
> 
> 
> --
> Oleg Goldshmidt | oleg at goldshmidt.org
> 
>

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