[U-Boot] [PATCH] kbuild: include config.mk when auto.conf is not older than .config

[Stephen Warren]

On 04/02/2015 09:30 PM, Masahiro Yamada wrote:
> Since the Kconfig conversion, config.mk has been included only when
> include/config/auto.conf is newer than the .config file.
>
> It causes build error if both files have the same time-stamps.
> It is actually possible because EXT* file systems have a 1s time-stamp
> resolution.
>
> The config.mk should be included when include/config/auto.conf is
> *not older* than the .config file.

Tested-by: Stephen Warren <swarren at nvidia.com>

I ran a loop of 941 "MAKEALL rpi_2" during a meeting without issue. I 
also applied the same patch to a tree that had the timestamps set in a 
way that triggered the problem, and it immediately solved it there.