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-rw-r--r--sys/include/sys/queue.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/include/sys/queue.h b/sys/include/sys/queue.h
index ee5c96b..60231f4 100644
--- a/sys/include/sys/queue.h
+++ b/sys/include/sys/queue.h
@@ -29,6 +29,9 @@
#include <sys/types.h>
+#ifndef _QUEUE_H_
+#define _QUEUE_H_
+
#define _Q_INVALIDATE(a)
/*
@@ -167,3 +170,4 @@ struct { \
TAILQ_INIT((head2)); \
} \
} while (0)
+#endif /* _QUEUE_H_ */