linux-kernel - Re: [PATCH] tools/lib/api: allow the linker to be overridden

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Message-ID: <20170215151833.GA2196@redhat.com>
Date:   Wed, 15 Feb 2017 13:18:33 -0200
From:   Arnaldo Carvalho de Melo <acme@...hat.com>
To:     Marcin Nowakowski <marcin.nowakowski@...tec.com>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools/lib/api: allow the linker to be overridden

Em Wed, Feb 15, 2017 at 03:56:30PM +0100, Marcin Nowakowski escreveu:
> Makefile in lib/api unconditionally sets the LD to support
> cross-compilation. However, when invoked from within the perf build LD
> may be already appropriately set for a given platform and the override
> may lead to cross-compilation without appropriate linker flags.
 
> Change the unconditional override to a conditional one.
> 
> Fixes: 37b4e2020a5f ('perf build: Add EXTRA_LDFLAGS option to makefile')
> Fixes: 703e01652d25 ('tools lib api: Respect CROSS_COMPILE for the linker')
> 
> Signed-off-by: Marcin Nowakowski <marcin.nowakowski@...tec.com>
> ---
>  tools/lib/api/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
> index adba83b..42e00c4 100644
> --- a/tools/lib/api/Makefile
> +++ b/tools/lib/api/Makefile
> @@ -10,7 +10,7 @@ endif
>  
>  CC = $(CROSS_COMPILE)gcc
>  AR = $(CROSS_COMPILE)ar
> -LD = $(CROSS_COMPILE)ld
> +LD ?= $(CROSS_COMPILE)ld

Looks strange to do this just for LD, what about CC and AR?

- Arnaldo
  
>  MAKEFLAGS += --no-print-directory
>  
> -- 
> 2.7.4