linux-kernel - Re: [PATCH] perf tools: Add _GNU

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Message-ID: <4B161F83.6090804@cn.fujitsu.com>
Date:	Wed, 02 Dec 2009 16:04:19 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Liming Wang <liming.wang@...driver.com>
CC:	Ingo Molnar <mingo@...e.hu>, mhiramat@...hat.com,
	fweisbec@...il.com, peterz@...radead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH]  perf tools: Add _GNU_SOURCE macro for strndup()



Liming Wang wrote:
> strndup is a GNU extension. So add _GNU_SOURCE macro
> to avoid compiling error.
> 
> Signed-off-by: Liming Wang <liming.wang@...driver.com>
> Acked-by: Frederic Weisbecker <fweisbec@...il.com>
> ---
>  tools/perf/util/string.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
> index 0977cf4..ea3eb39 100644
> --- a/tools/perf/util/string.c
> +++ b/tools/perf/util/string.c
> @@ -1,5 +1,8 @@
> +#define _GNU_SOURCE
>  #include <string.h>
>  #include <stdlib.h>
> +
> +#undef _GNU_SOURCE

I think those two "#include" can be removed,
because util.h include it.

>  #include "string.h"
>  #include "util.h"
>  
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