[Buildroot] [PATCH 3/4] toolchain: only external toolchain option displayed

[Thomas Petazzoni]

Hello,

On Thu,  2 Mar 2017 18:34:01 +0800, Guo Ren wrote:
> Currently csky architecture isn't support the "internal toolchain
> backend", so we disable it in config.
> 
> Signed-off-by: Guo Ren <ren_guo at c-sky.com>

This patch should be squashed into PATCH 2/4. If you don't do that and
I commit only PATCH 2/4, then things are broken, because the csky
architecture is added, but we don't prevent users from trying to build
an internal toolchain.

Thanks,

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