[Buildroot] [PATCH] gcc: Add GCC 5.2.x option

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Cyril,

On Fri, 26 Feb 2016 14:15:48 +1100, Cyril Bur wrote:
> GCC 5.3.x introduces a regression with PowerPC Altivec/VSX code generation.
> 
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69969
> 
> Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
> ---
> I'm not sure if this patch is worth the trouble. By the looks of it the GCC
> guys are aiming to have a fix in 5.4 and it is unlikely most users are
> doing things that would result in them hitting the bug.

Like we did for previous gcc versions, we only want to support one
minor version at a time for a given major branch.

So at the gcc 4 era, it meant we would only package one gcc 4.8, one
gcc 4.9, etc.

At the gcc >= 5 era, it means we want to package only one 5.x version,
one 6.x version, etc.

If you want to fix the problem without waiting for gcc 5.4, what I can
suggest is to backport the fixes for the regression you are
experiencing.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com