Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753717AbbBKRQ7 (ORCPT ); Wed, 11 Feb 2015 12:16:59 -0500 Received: from mx1.redhat.com ([209.132.183.28]:53279 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752429AbbBKRQ6 (ORCPT ); Wed, 11 Feb 2015 12:16:58 -0500 Date: Wed, 11 Feb 2015 11:24:05 -0500 From: Josh Boyer To: Vineet Gupta , Jiri Olsa , Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org Subject: [PATCH] perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check Message-ID: <20150211162404.GA15522@hansolo.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1319 Lines: 37 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 --- tools/perf/config/feature-checks/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Full logs at: http://koji.fedoraproject.org/koji/getfile?taskID=8895543&name=build.log diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile index 42ac05aaf8ac..b32ff3372514 100644 --- a/tools/perf/config/feature-checks/Makefile +++ b/tools/perf/config/feature-checks/Makefile @@ -49,7 +49,7 @@ test-hello.bin: $(BUILD) test-pthread-attr-setaffinity-np.bin: - $(BUILD) -Werror -lpthread + $(BUILD) -D_GNU_SOURCE -Werror -lpthread test-stackprotector-all.bin: $(BUILD) -Werror -fstack-protector-all -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/