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-rw-r--r--sys/net/radix.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/net/radix.h b/sys/net/radix.h
index b71d89fbc687..118fe20662a2 100644
--- a/sys/net/radix.h
+++ b/sys/net/radix.h
@@ -31,9 +31,12 @@
* SUCH DAMAGE.
*
* from: @(#)radix.h 7.4 (Berkeley) 6/28/90
- * $Id: radix.h,v 1.2 1993/10/16 17:43:32 rgrimes Exp $
+ * $Id: radix.h,v 1.3 1993/11/07 17:47:03 wollman Exp $
*/
+#ifndef _NET_RADIX_H_
+#define _NET_RADIX_H_ 1
+
/*
* Radix search tree node layout.
*/
@@ -117,3 +120,4 @@ extern struct radix_node_head {
#define R_Malloc(p, t, n) (p = (t) malloc((unsigned long)(n), M_RTABLE, M_DONTWAIT))
#define Free(p) free((caddr_t)p, M_RTABLE);
#endif /*KERNEL*/
+#endif /* _NET_RADIX_H_ */