Added include protection.

diff --git a/sys/netinet/in.h b/sys/netinet/in.h
index be63cbf..e8b9a2d 100644 (file)
--- a/sys/netinet/in.h
+++ b/sys/netinet/in.h
@@ -33,6 +33,9 @@
  *     @(#)in.h        7.11 (Berkeley) 4/20/91
  */
 
  *     @(#)in.h        7.11 (Berkeley) 4/20/91
  */
 

+#ifndef _NETINET_IN_H_
+#define _NETINET_IN_H_
+

 /*
  * Constants and structures defined by the internet system,
  * Per RFC 790, September 1981.
 /*
  * Constants and structures defined by the internet system,
  * Per RFC 790, September 1981.


@@ -149,3 +152,5 @@ struct ip_opts {
 struct in_addr in_makeaddr();
 u_long in_netof(), in_lnaof();
 #endif
 struct in_addr in_makeaddr();
 u_long in_netof(), in_lnaof();
 #endif

+
+#endif /* _NETINET_IN_H_ */