--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/cus-file.el	Mon Aug 13 11:19:21 2007 +0200
@@ -0,0 +1,59 @@
+;;; cus-file.el --- Manage location of the customize init file
+
+;; Copyright (C) 2000 by Free Software Foundation, Inc.
+
+;; Author: Mike Sperber <mike@xemacs.org>
+;; Keywords: internal
+
+;; This file is part of XEmacs.
+
+;; XEmacs is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; XEmacs is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: Not in FSF
+
+;;; Commentary:
+
+;; This file manages the location of the custom init file without
+;; loading all of the custom code itself.
+
+
+;;; Code:
+(provide 'cus-file)
+
+;;;###autoload
+(defconst custom-file-base "custom.el"
+  "Base of file name for storing customization information.")
+
+;;;###autoload
+(defvar custom-file nil
+  "File used for storing customization information.
+If you change this from the default you need to
+explicitly load that file for the settings to take effect.")
+
+;;;###autoload
+(defun make-custom-file-name (init-file &optional force-new)
+  "Construct the default custom file name from the init file name.
+If FORCE-NEW is non-nil, force post-migration location."
+  (let* ((init-file (or init-file user-init-file))
+	 (init-file-directory (file-name-directory init-file)))
+    (if (or force-new
+	    (string= init-file-directory
+		     (expand-file-name
+		      (file-name-as-directory user-init-directory))))
+	(expand-file-name custom-file-base user-init-directory)
+      init-file)))
+
+;;; cus-file.el ends here