_GNU_SOURCE is provided by lib.mk, so it should be dropped to prevent redefinition warnings. Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx> --- tools/testing/selftests/mqueue/mq_perf_tests.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c b/tools/testing/selftests/mqueue/mq_perf_tests.c index fb898850867c..43630ee0b63d 100644 --- a/tools/testing/selftests/mqueue/mq_perf_tests.c +++ b/tools/testing/selftests/mqueue/mq_perf_tests.c @@ -20,7 +20,6 @@ * performance. * */ -#define _GNU_SOURCE #include <stdio.h> #include <stdlib.h> #include <unistd.h> -- 2.45.0.118.g7fe29c98d7-goog