$NetBSD: patch-af,v 1.4 2012/01/25 09:56:08 he Exp $

A number of changes to make this build with no warnings under -Wall.

--- classes/config.c.orig	1994-10-05 05:18:21.000000000 +0000
+++ classes/config.c
@@ -1,8 +1,12 @@
 #define CLASS_Config_PRIVATE
 #include "config.h"
 
+#include <stdlib.h>
 #include <strings.h>
 #include <ctype.h>
+#ifdef HAVE_STRERROR
+#include <string.h>
+#endif
 
 #define DFLT_NFIELDS	10
 #define START_FIELD(S)	\
@@ -31,13 +35,12 @@ static char quote_delimiters[]		= "'\"";
  * a normal character.
  */
 
-static Config config_expand();
-static unsigned char* config_copy();
-static unsigned char* get_quoted_string();
-
-extern char*	malloc();
-extern char*	realloc();
-extern char*	strdup();
+static Config config_expand(Config, char*);
+static char* config_copy(Config, char*, char**, int);
+static char* get_quoted_string(char, char*, char**);
+
+void config_setbreak (Config, const char*, const char*);
+
 
 static int dflt_options	= CFG_OPT_UCASE;
 
@@ -45,7 +48,6 @@ Config
 config_new()
 {
 	Config self;
-	register char* p;
 
 	self = (Config)calloc (1, sizeof (*self));
 	config_setbreak (self, default_separators, default_delimiters);
@@ -69,17 +71,13 @@ Config	self;
 	return 0;
 }
 
-#ifndef __STDC__
-# define const
-#endif
-int
+void
 config_setbreak (self, separators, delimiters)
-Config	self;
-const char*	separators;
-const char*	delimiters;
-#undef const
+	Config	self;
+	const char*	separators;
+	const char*	delimiters;
 {
-	register unsigned char* p;
+	unsigned char* p;
 
 	self->separators = (char*)separators;
 	self->delimiters = (char*)delimiters;
@@ -112,21 +110,21 @@ Config	self;
 }
 
 /* Okay, start stashing tokens away */
+int
 config_scanbuf (self, buf)
-Config	self;
-char*	buf;
+	Config	self;
+	char*	buf;
 {
-	register unsigned char* fr;
-	unsigned char* to;
+	char* fr;
+	char* to;
 	int type;
-	int len;
 
 	self->buf = buf;
 	self->tbuf = strdup(buf);
 	self->nfields = 0;
 
-	fr = (unsigned char*)self->tbuf; to = (unsigned char*)self->buf;
-	while ((type = self->brk[*fr]) != BRK_EOS) {
+	fr = self->tbuf; to = self->buf;
+	while ((type = self->brk[(unsigned char)*fr]) != BRK_EOS) {
 		switch (type) {
 		 case BRK_QUOTE:
 			START_FIELD(to);
@@ -176,8 +174,8 @@ int	options;
 /* Private methods */
 static Config
 config_expand (self, fieldstart)
-Config	self;
-char*	fieldstart;
+	Config	self;
+	char*	fieldstart;
 {
 	self->maxfields += DFLT_NFIELDS;
 
@@ -229,11 +227,11 @@ char*	fieldstart;
  * returns: the location in <ss> where the scan terminated (i.e., the
  * terminating instances of <qc>).
  */
-static unsigned char*
+static char*
 get_quoted_string (qc, ss, rsd)
-char qc;
-register unsigned char* ss;
-char**	rsd;
+	char qc;
+	char* ss;
+	char**	rsd;
 {
 	int v;
 	register char* sd = *rsd;
@@ -251,11 +249,12 @@ char**	rsd;
 			ss++;
 
 			/* \xDD: hex digit escape */
-			if (*ss == 'x' && isxdigit (ss[1])) {
+			if (*ss == 'x' && isxdigit ((unsigned char)ss[1])) {
 				v = 0;
 				ss++;
 
-				v = (hex_ord(*ss) << 4) + hex_ord(ss[1]);
+				v = (hex_ord((unsigned char)*ss) << 4) +
+					hex_ord((unsigned char)ss[1]);
 				ss++;
 				*sd++ = v;
 				continue;
@@ -264,10 +263,12 @@ char**	rsd;
 			/* \DDD: octal digit escape. Up to 3 octal
 			 * digits.
 			 */
-			else if (isodigit(*ss)) {
+			else if (isodigit((unsigned char)*ss)) {
 				int n = 3;
 
-				for (v = 0; isodigit(*ss) && n > 0; ss++,n--) {
+				for (v = 0; isodigit((unsigned char)*ss) &&
+					     n > 0; ss++,n--)
+				{
 					v = (v << 3) + *ss - '0';
 				}
 				ss--;
@@ -297,15 +298,15 @@ char**	rsd;
 }
 
 /* Copy characters and map to upper-case */
-static unsigned char*
+static char*
 config_copy (self, fr, pto, brk)
-Config self;
-register unsigned char* fr;
-unsigned char** pto;
-int brk;
+	Config self;
+	char* fr;
+	char** pto;
+	int brk;
 {
-	register unsigned char* to = *pto;
-	register unsigned char c;
+	char* to = *pto;
+	unsigned char c;
 
 	if (self->options & CFG_OPT_UCASE) {
 		while ((self->brk[c = *fr] & brk) == 0) {