Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile

[shuah]

On 1/16/19 10:43 AM, Daniel DÃaz wrote:
> From: Fathi Boudra <fathi.boudra@xxxxxxxxxx>
>
> Relax CC assignment to allow to override CC in the top-level Makefile.
>
> Signed-off-by: Denys Dmytriyenko <denys@xxxxxx>
> ---
>   tools/testing/selftests/lib.mk | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index 8b0f16409ed7..0f9c47eaaa6f 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -1,6 +1,6 @@
>   # This mimics the top-level Makefile. We do it explicitly here so that this
>   # Makefile can operate with or without the kbuild infrastructure.
> -CC := $(CROSS_COMPILE)gcc
> +CC ?= $(CROSS_COMPILE)gcc
>   
>   ifeq (0,$(MAKELEVEL))
>   OUTPUT := $(shell pwd)

What problem does this fix?

thanks,
-- Shuah