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-rw-r--r--tools/lib/bpf/ringbuf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/lib/bpf/ringbuf.c b/tools/lib/bpf/ringbuf.c
index bc10fa1d43c7..4fc6c6cbb4eb 100644
--- a/tools/lib/bpf/ringbuf.c
+++ b/tools/lib/bpf/ringbuf.c
@@ -4,6 +4,9 @@
*
* Copyright (C) 2020 Facebook, Inc.
*/
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>