Use the options.awk script to generate options_def.h (as in nvi distribution).

Modify options.awk to detect an incorrectly sorted options array.
NB: if GTAGS is undefined theses sources will still generate invalid programs.

usr.bin/vi/build/Makefile

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.19 2001/05/01 16:48:43 aymeric Exp $
+#	$NetBSD: Makefile,v 1.20 2003/08/28 16:23:40 dsl Exp $
 #
 #	@(#)Makefile.in	8.75 (Berkeley) 10/23/96
 
@@ -35,5 +35,10 @@ MLINKS=	vi.1 ex.1 vi.1 view.1
 .PATH: ${.CURDIR}/../vi ${.CURDIR}/../ex ${.CURDIR}/../cl
 .PATH: ${.CURDIR}/../common ${.CURDIR}/../docs/USD.doc/vi.man
 
+CFLAGS+= -I.
+
+options_def.h: options.awk options.c
+	awk -f ${.ALLSRC} >${.TARGET}
+
 .include "../../Makefile.inc"
 .include <bsd.prog.mk>

usr.bin/vi/common/options.awk

@@ -1,9 +1,21 @@
-#	$NetBSD: options.awk,v 1.3 2001/03/31 11:37:46 aymeric Exp $
+#	$NetBSD: options.awk,v 1.4 2003/08/28 16:23:41 dsl Exp $
 #
 #	@(#)options.awk	10.1 (Berkeley) 6/8/95
  
 /^\/\* O_[0-9A-Z_]*/ {
-	printf("#define %s %d\n", $2, cnt++);
+	opt = $2
+	printf("#define %s %d\n", opt, cnt++);
+	ofs = FS
+	FS = "\""
+	do getline
+	while ($1 != "	{")
+	FS = ofs
+	opt_name = $2
+	if (opt_name < prev_name) {
+		printf "missorted %s: \"%s\" < \"%s\"\n", opt, opt_name, prev_name >"/dev/stderr"
+		exit 1
+	}
+	prev_name = opt_name
 	next;
 }
 END {

usr.bin/vi/include/options_def.h

@@ -1,81 +0,0 @@
-#define O_ALTWERASE 0
-#define O_AUTOINDENT 1
-#define O_AUTOPRINT 2
-#define O_AUTOWRITE 3
-#define O_BACKUP 4
-#define O_BEAUTIFY 5
-#define O_CDPATH 6
-#define O_CEDIT 7
-#define O_COLUMNS 8
-#define O_COMMENT 9
-#define O_DIRECTORY 10
-#define O_EDCOMPATIBLE 11
-#define O_ERRORBELLS 12
-#define O_ESCAPETIME 13
-#define O_EXRC 14
-#define O_EXTENDED 15
-#define O_FILEC 16
-#define O_FLASH 17
-#define O_GTAGSMODE 18
-#define O_HARDTABS 19
-#define O_ICLOWER 20
-#define O_IGNORECASE 21
-#define O_KEYTIME 22
-#define O_LEFTRIGHT 23
-#define O_LINES 24
-#define O_LISP 25
-#define O_LIST 26
-#define O_LOCKFILES 27
-#define O_MAGIC 28
-#define O_MATCHCHARS 29
-#define O_MATCHTIME 30
-#define O_MESG 31
-#define O_MODELINE 32
-#define O_MSGCAT 33
-#define O_NOPRINT 34
-#define O_NUMBER 35
-#define O_OCTAL 36
-#define O_OPEN 37
-#define O_OPTIMIZE 38
-#define O_PARAGRAPHS 39
-#define O_PATH 40
-#define O_PRINT 41
-#define O_PROMPT 42
-#define O_READONLY 43
-#define O_RECDIR 44
-#define O_REDRAW 45
-#define O_REMAP 46
-#define O_REPORT 47
-#define O_RULER 48
-#define O_SCROLL 49
-#define O_SEARCHINCR 50
-#define O_SECTIONS 51
-#define O_SECURE 52
-#define O_SHELL 53
-#define O_SHELLMETA 54
-#define O_SHIFTWIDTH 55
-#define O_SHOWMATCH 56
-#define O_SHOWMODE 57
-#define O_SIDESCROLL 58
-#define O_SLOWOPEN 59
-#define O_SOURCEANY 60
-#define O_TABSTOP 61
-#define O_TAGLENGTH 62
-#define O_TAGS 63
-#define O_TERM 64
-#define O_TERSE 65
-#define O_TILDEOP 66
-#define O_TIMEOUT 67
-#define O_TTYWERASE 68
-#define O_VERBOSE 69
-#define O_W1200 70
-#define O_W300 71
-#define O_W9600 72
-#define O_WARN 73
-#define O_WINDOW 74
-#define O_WINDOWNAME 75
-#define O_WRAPLEN 76
-#define O_WRAPMARGIN 77
-#define O_WRAPSCAN 78
-#define O_WRITEANY 79
-#define O_OPTIONCOUNT 80