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-rw-r--r--include/my_atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/my_atomic.h b/include/my_atomic.h
index 48bbe8c2946..849b54f3532 100644
--- a/include/my_atomic.h
+++ b/include/my_atomic.h
@@ -1,3 +1,5 @@
+#ifndef MY_ATOMIC_INCLUDED
+#define MY_ATOMIC_INCLUDED
/* Copyright (C) 2006 MySQL AB
This program is free software; you can redistribute it and/or modify