From: Josh Boyer <jwbo...@fedoraproject.org> 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 <jwbo...@fedoraproject.org> Cc: Jiri Olsa <jo...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Vineet Gupta <vineet.gup...@synopsys.com> Link: http://lkml.kernel.org/r/20150211162404.ga15...@hansolo.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/config/feature-checks/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
