[U-Boot] [PATCH] arm: Make gcc 6.0 or later a hard requirement now.

[Tom Rini <trini@konsulko.com>]

On Mon, Dec 04, 2017 at 12:02:20PM -0700, Stephen Warren wrote:
> On 12/02/2017 06:12 PM, Tom Rini wrote:
> >Move the warning to an error as we have been promising would happen in
> >this release.
> 
> Oh. This has broken my U-Boot build/test system. I guess it's entirely my
> fault for interpreting the "2018.01" warning as "you'll need to fix this in
> Jan 2018", not "you'll need to fix this as soon as development starts for
> 2018.01":-(

I'm tagging v2018.01-rc1 later today, so I think this is about the time
to enforce the warning.

> Is there a reason for requiring such an extremely new gcc, as opposed to
> simply something not ancient? For example, no LTS version of Ubuntu packages
> a compiler that's new enough to build U-Boot now:-(

There's always the Free Electrons toolchains, as well as Linaro.  And
yes, we've been having size problems and having to play various games to
allow for older gcc versions to still fit things in.  GCC-6 is where
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54303 was resolved and we
get a lot of space saved, and a number of platforms simply won't work
with older.

-- 
Tom
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