perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check

[linux-2.6-microblaze.git] / tools / perf / config / feature-checks / Makefile

diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 42ac05a..b32ff33 100644 (file)
--- 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