Upgrade to version used in GNU Diffutils 2.8.1.

diff --git a/lib/hard-locale.c b/lib/hard-locale.c
index 01e0ebd..0070542 100644 (file)
--- a/lib/hard-locale.c
+++ b/lib/hard-locale.c
@@ -1,5 +1,6 @@
 /* hard-locale.c -- Determine whether a locale is hard.
-   Copyright 1997, 1998, 1999 Free Software Foundation, Inc.
+
+   Copyright (C) 1997, 1998, 1999, 2002 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
@@ -19,41 +20,26 @@
 # include <config.h>
 #endif
 
-#if __GNUC__
-# define alloca __builtin_alloca
-#else
-# ifdef HAVE_ALLOCA_H
-#  include <alloca.h>
-# else
-#  ifdef _AIX
- #  pragma alloca
-#  else
-#   ifdef _WIN32
-#    include <malloc.h>
-#    include <io.h>
-#   else
-#    ifndef alloca
-char *alloca ();
-#    endif
-#   endif
-#  endif
-# endif
-#endif
-
 #if HAVE_LOCALE_H
 # include <locale.h>
 #endif
 
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
 #if HAVE_STRING_H
 # include <string.h>
 #endif
 
+#include "hard-locale.h"
+
 /* Return nonzero if the current CATEGORY locale is hard, i.e. if you
    can't get away with assuming traditional C or POSIX behavior.  */
 int
 hard_locale (int category)
 {
-#if ! (defined ENABLE_NLS && HAVE_SETLOCALE)
+#if ! HAVE_SETLOCALE
   return 0;
 #else
 
@@ -62,22 +48,28 @@ hard_locale (int category)
 
   if (p)
     {
-# if defined __GLIBC__ && __GLIBC__ >= 2
+# if defined __GLIBC__ && 2 <= __GLIBC__
       if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
        hard = 0;
 # else
-      char *locale = alloca (strlen (p) + 1);
-      strcpy (locale, p);
-
-      /* Temporarily set the locale to the "C" and "POSIX" locales to
-        find their names, so that we can determine whether one or the
-        other is the caller's locale.  */
-      if (((p = setlocale (category, "C")) && strcmp (p, locale) == 0)
-         || ((p = setlocale (category, "POSIX")) && strcmp (p, locale) == 0))
-       hard = 0;
+      char *locale = malloc (strlen (p) + 1);
+      if (locale)
+       {
+         strcpy (locale, p);
+
+         /* Temporarily set the locale to the "C" and "POSIX" locales
+            to find their names, so that we can determine whether one
+            or the other is the caller's locale.  */
+         if (((p = setlocale (category, "C"))
+              && strcmp (p, locale) == 0)
+             || ((p = setlocale (category, "POSIX"))
+                 && strcmp (p, locale) == 0))
+           hard = 0;
 
-      /* Restore the caller's locale.  */
-      setlocale (category, locale);
+         /* Restore the caller's locale.  */
+         setlocale (category, locale);
+         free (locale);
+       }
 # endif
     }