;;; 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)))
    (if (or force-new
	    (not init-file)
	    (string= (file-name-directory init-file)
		     (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