--- vi.h.orig	Sat Jul 27 11:00:24 1991
+++ vi.h	Thu Dec  5 00:37:44 1996
@@ -16,6 +16,7 @@
 
 #define VERSION "ELVIS 1.4, by Steve Kirkendall"
 #define COPYING	"This version of ELVIS is freely redistributable."
+#define VNVERSION "Adapted for Vietnamese text by Nguye^~n T. Cu+o+`ng"
 
 #include <errno.h>
 extern int errno;
@@ -92,7 +93,9 @@
 #define READONLY	0x0002	/* the file is read-only */
 #define HADNUL		0x0004	/* the file contained NUL characters */
 #define MODIFIED	0x0008	/* the file has been modified */
-#define NOFILE		0x0010	/* no name is known for the current text */
+/*#define NOFILE		0x0010	/* no name is known for the current text */
+/* NOFILE conflicts with 4.4BSD's <sys/param.h> */
+#define NONAME		0x0010	/* no name is known for the current text */
 #define ADDEDNL		0x0020	/* newlines were added to the file */
 
 /* macros used to set/clear/test flags */
@@ -235,7 +238,13 @@
 #ifndef NO_RECYCLE
 extern long	allocate();	/* allocate a free block of the tmp file */
 #endif
-extern int	trapint();	/* trap handler for SIGINT */
+extern 
+#if BSD && (BSD >= 199306)
+ void
+#else
+ int	
+#endif
+trapint();	/* trap handler for SIGINT */
 extern void	blkdirty();	/* marks a block as being "dirty" */
 extern void	blkflush();	/* writes a single dirty block to the disk */
 extern void	blksync();	/* forces all "dirty" blocks to disk */