[U-Boot] [U-Boot, v2] Pass empty CFLAGS on invocation of libfdt/setup.py

[Tom Rini]

On Thu, Mar 16, 2017 at 03:23:55PM -0700, Max Filippov wrote:

> When building u-boot tools in cross-build environment CFLAGS environment
> variable set up for target is taken into an account when building code
> for host. Make it empty on invocation of python.
> 
> This fixes the following build errors when cross-compiling for xtensa:
> 
>   cc1: error: unrecognized command line option "-mlongcalls"
>   cc1: error: unrecognized command line option "-mauto-litpools"
> 
> Signed-off-by: Max Filippov <jcmvbkbc at gmail.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> Reviewed-by: Tom Rini <trini at konsulko.com>

Applied to u-boot/master, thanks!

-- 
Tom
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