[PATCH 2/3] libperf: avoid redefining _GNU_SOURCE in test

From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Igor Lubashev <ilubashe@akamai.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Alexios Zavras <alexios.zavras@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Wei Li <liwei391@huawei.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Andi Kleen <ak@linux.intel.com>,
	linux-kernel@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH 2/3] libperf: avoid redefining _GNU_SOURCE in test
Date: Thu,  5 Mar 2020 23:11:09 -0800	[thread overview]
Message-ID: <20200306071110.130202-3-irogers@google.com> (raw)
In-Reply-To: <20200306071110.130202-1-irogers@google.com>

_GNU_SOURCE needs to be globally defined to pick up features like
asprintf. Add a guard against redefinition in this test.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/lib/perf/tests/test-evlist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/lib/perf/tests/test-evlist.c b/tools/lib/perf/tests/test-evlist.c
index 6d8ebe0c2504..5a5ff104b668 100644
--- a/tools/lib/perf/tests/test-evlist.c
+++ b/tools/lib/perf/tests/test-evlist.c
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE // needed for sched.h to get sched_[gs]etaffinity and CPU_(ZERO,SET)
+#endif
 #include <sched.h>
 #include <stdio.h>
 #include <stdarg.h>
-- 
2.25.1.481.gfbce0eb801-goog

