Re: [PATCH] Makefile: Set CC/AR variable only if it doesn't have a value

[John Kacur <jkacur@redhat.com>]

On Sun, 3 Jan 2016, Khem Raj wrote:

> This helps it compile with clang or any other compilers besides gcc
> 
> Signed-off-by: Khem Raj <raj.khem@gmail.com>
> ---
>  Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 1e4b7d1..2c2d396 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1,6 +1,6 @@
>  VERSION = 0.96
> -CC=$(CROSS_COMPILE)gcc
> -AR=$(CROSS_COMPILE)ar
> +CC?=$(CROSS_COMPILE)gcc
> +AR?=$(CROSS_COMPILE)ar
>  
>  OBJDIR = bld
>  
> -- 

Signed-off-by: John Kacur <jkacur@gmail.com>

I added this to the next build.

Note, I read everything in the thread, and I think there was a bit of 
confusion over thinking this was a kernel Makefile and not
the rt-tests one. As clark said, this is indeed the appropriate place to
discuss user space tools that are to do with real-time.
Perhaps after [PATCH] add rt-tests: to make it clear.

This patch is fine, it changes nothing other than letting the Khem and 
others specify CC and AR from the command line when typing make.

Thanks