(main): If batch mode, set Vundo_outer_limit to nil.

src/ChangeLog

+2004-12-22  Richard M. Stallman  <rms@gnu.org>
+
+	* emacs.c (main): If batch mode, set Vundo_outer_limit to nil.
+
+	* lisp.h (Vundo_outer_limit): Fix decl.
+
+	* undo.c (Vundo_outer_limit): Replaces undo_outer_limit.
+	Uses changed.
+	(syms_of_undo): Initialize appropriately.
+	(truncate_undo_list): If it's nil, there's no limit.
+
 2004-12-22  Kenichi Handa  <handa@m17n.org>
 	* xselect.c (Fx_get_cut_buffer_internal): Return a unibyte string.

src/emacs.c

@@ -1133,7 +1133,10 @@ main (argc, argv
   /* Handle the -batch switch, which means don't do interactive display.  */
   noninteractive = 0;
   if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args))
-    noninteractive = 1;
+    {
+      noninteractive = 1;
+      Vundo_outer_limit = Qnil;
+    }
   if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args))
     {
       noninteractive = 1;	/* Set batch mode.  */