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* [PATCH] perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check
@ 2015-02-11 16:24 Josh Boyer
  2015-02-11 20:39 ` Arnaldo Carvalho de Melo
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Josh Boyer @ 2015-02-11 16:24 UTC (permalink / raw)
  To: Vineet Gupta, Jiri Olsa, Arnaldo Carvalho de Melo
  Cc: Peter Zijlstra, Ingo Molnar, linux-kernel

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@fedoraproject.org>
---
 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


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2015-03-01 16:50 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-02-11 16:24 [PATCH] perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check Josh Boyer
2015-02-11 20:39 ` Arnaldo Carvalho de Melo
2015-02-18 18:30 ` [tip:perf/core] " tip-bot for Josh Boyer
2015-03-01 16:49 ` [tip:perf/urgent] " tip-bot for Josh Boyer

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