synced Bison lib with gnulib

[Paul Eggert]

I installed this to sync Bison with gnulib.

2003-03-09  Paul Eggert  <address@hidden>

        * lib/strnlen.c, lib/mbswidth.h, lib/argmatch.c: Sync with gnulib.

--- strnlen.c   13 Dec 2002 11:24:16 -0000      1.4
+++ strnlen.c   10 Mar 2003 07:41:31 -0000      1.5
@@ -1,5 +1,5 @@
 /* Find the length of STRING, but scan at most MAXLEN characters.
-   Copyright (C) 1996, 1997, 1998, 2000-2002 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 2000-2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,16 +20,13 @@
 #if HAVE_CONFIG_H
 # include <config.h>
 #endif
+#undef strnlen
 
 #if HAVE_STRING_H
 # if !STDC_HEADERS && HAVE_MEMORY_H
 #  include <memory.h>
 # endif
-/* Temporarily redefine strnlen so that an inconsistent prototype
-   (on at least AIX4.3.2.0 w/gcc-2.95.3) doesn't cause trouble.  */
-# define strnlen system_strnlen
 # include <string.h>
-# undef strnlen
 #else
 # include <strings.h>
 #endif
@@ -43,6 +40,10 @@ char *memchr ();
 
 #undef __strnlen
 #undef strnlen
+
+#ifndef _LIBC
+# define strnlen rpl_strnlen
+#endif
 
 #ifndef weak_alias
 # define __strnlen strnlen
--- mbswidth.h  23 Nov 2002 07:08:51 -0000      1.2
+++ mbswidth.h  10 Mar 2003 07:41:31 -0000      1.3
@@ -1,5 +1,5 @@
 /* Determine the number of screen columns needed for a string.
-   Copyright (C) 2000-2002 Free Software Foundation, Inc.
+   Copyright (C) 2000-2003 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,6 +17,14 @@
 
 #include <stddef.h>
 
+/* Avoid a clash of our mbswidth() with a function of the same name defined
+   in UnixWare 7.1.1 <wchar.h>.  We need this #include before the #define
+   below.  */
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+
 /* Optional flags to influence mbswidth/mbsnwidth behavior.  */
 
 /* If this bit is set, return -1 upon finding an invalid or incomplete
@@ -27,6 +35,7 @@
    Otherwise, assume unprintable characters have width 0 if they are
    control characters and 1 otherwise.  */
 #define MBSW_REJECT_UNPRINTABLE        2
+
 
 /* Returns the number of screen columns needed for STRING.  */
 #define mbswidth gnu_mbswidth  /* avoid clash with UnixWare 7.1.1 function */
--- argmatch.c  22 Nov 2002 00:30:58 -0000      1.5
+++ argmatch.c  10 Mar 2003 07:35:12 -0000      1.6
@@ -1,5 +1,7 @@
 /* argmatch.c -- find a match for a string in an array
-   Copyright (C) 1990, 1998, 1999, 2001, 2002 Free Software Foundation, Inc.
+
+   Copyright (C) 1990, 1998, 1999, 2001, 2002, 2003 Free Software
+   Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -42,6 +44,10 @@
    literal_quoting_style.  */
 #ifndef ARGMATCH_QUOTING_STYLE
 # define ARGMATCH_QUOTING_STYLE locale_quoting_style
+#endif
+
+#ifndef EXIT_FAILURE
+# define EXIT_FAILURE 1
 #endif
 
 /* Non failing version of argmatch call this function after failing. */