Re: [PATCH v2 1/4] kbuild: use $(CC_VERSION_TEXT) to evaluate CC_IS_GCC and CC_IS_CLANG

[Nathan Chancellor]

On Thu, Apr 23, 2020 at 11:23:51PM +0900, Masahiro Yamada wrote:
> The result of '$(CC) --version | head -n 1' is already computed by the
> top Makefile, and stored in the environment variable, CC_VERSION_TEXT.
> 
> 'echo' is probably less expensive than the two commands $(CC) and
> 'head' although this optimization is not noticeable level.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>

Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
Tested-by: Nathan Chancellor <natechancellor@xxxxxxxxx>