$NetBSD: patch-cu,v 1.2 2011/07/03 20:15:59 dholland Exp $

- protect header file against multiple inclusion

--- server/df.h~	1997-09-27 17:10:13.000000000 -0400
+++ server/df.h	2008-08-31 02:08:49.000000000 -0400
@@ -26,6 +26,9 @@
 *									*
 ************************************************************************/
 
+#ifndef DF_H_INCLUDED
+#define DF_H_INCLUDED
+
 #define DF_NVALS	256
 /*
 **  The two broad classes of data we need to handle are integers
@@ -52,3 +55,5 @@ typedef struct _df_t {
    df_block_t *		curblkp;
    struct _df_t *	next;
 }df_t;
+
+#endif /* DF_H_INCLUDED */
