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-rw-r--r--tools/testing/selftests/clone3/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/clone3/Makefile b/tools/testing/selftests/clone3/Makefile
index ef7564cb7abe..79b19a2863a0 100644
--- a/tools/testing/selftests/clone3/Makefile
+++ b/tools/testing/selftests/clone3/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
-CFLAGS += -g -I../../../../usr/include/
+CFLAGS += -g -std=gnu99 -I../../../../usr/include/
LDLIBS += -lcap
TEST_GEN_PROGS := clone3 clone3_clear_sighand clone3_set_tid \