linux-kernel - Re: [PATCH trace-cmd 3/3] Revert "trace-cmd: Use conditional assignment of CC and AR"

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Date:	Wed, 09 Mar 2011 20:21:42 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	David Sharp <dhsharp@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mrubin@...gle.com,
	Darren Hart <dvhart@...ux.intel.com>
Subject: Re: [PATCH trace-cmd 3/3] Revert "trace-cmd: Use conditional
 assignment of CC and AR"

On Wed, 2011-03-09 at 15:58 -0800, David Sharp wrote:
> This reverts commit 6c696cec3f264a9399241b6e648f58bc97117d49.
> 
> Make has default values CC and AR of 'cc' and 'ar' respectively. This means
> that "CC ?= anything" will never have effect, because CC is always already set.
> Because of this, 6c696cec makes setting CROSS_COMPILE from the command line or
> environment useless.

Darren, can you verify this, as you were the one to make the original
change. I never had to cross compile it, I always did it natively.

David, Thanks! I'll go ahead and apply patch 1 and 2, and I'll wait for
a reply from Darren for this patch.

-- Steve

> 
> Signed-off-by: David Sharp <dhsharp@...gle.com>
> Cc: Darren Hart <dvhart@...ux.intel.com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> ---
>  Makefile |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 169fcbc..fa37df5 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -13,8 +13,8 @@ FILE_VERSION = 6
>  
>  MAKEFLAGS += --no-print-directory
>  
> -CC ?= $(CROSS_COMPILE)gcc
> -AR ?= $(CROSS_COMPILE)ar
> +CC = $(CROSS_COMPILE)gcc
> +AR = $(CROSS_COMPILE)ar
>  EXT = -std=gnu99
>  INSTALL = install
>  


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