linux-kernel - Re: [PATCH] perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity

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Message-ID: <20150211203920.GK24251@kernel.org>
Date:	Wed, 11 Feb 2015 17:39:20 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Josh Boyer <jwboyer@...oraproject.org>
Cc:	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Define _GNU_SOURCE on
 pthread_attr_setaffinity_np feature check

Em Wed, Feb 11, 2015 at 11:24:05AM -0500, Josh Boyer escreveu:
> The man page for pthread_attr_set_affinity_np states that _GNU_SOURCE must
> be defined before pthread.h is included in order to get the proper function
> declaration.  Define this in the Makefile.
> 
> Without this defined, the feature check fails on a Fedora system with gcc5
> and then the perf build later fails with conflicting prototypes for the
> function.
> 
> Signed-off-by: Josh Boyer <jwboyer@...oraproject.org>
> ---
>  tools/perf/config/feature-checks/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Thanks, applied
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