;;; pcustom.el -- a portable custom.el.
+;; Copyright (C) 1999 Free Software Foundation, Inc.
;; Copyright (C) 1999 Mikio Nakajima <minakaji@osaka.email.ne.jp>
-;; Copyright (C) 1999 Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
;; Author: Mikio Nakajima <minakaji@osaka.email.ne.jp>
;; Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
-;; Maintainer: Mikio Nakajima <minakaji@osaka.email.ne.jp>
;; Keywords: emulating, custom
;; This file is part of APEL (A Portable Emacs Library).
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
+;;; Commentary:
+
;;; Code:
(require 'poe)
-;; If old compiler is used under v18, `eval-when-compile' and
-;; `static-if' are expanded (and evaluated) at *load-time*.
(eval-when-compile (require 'static))
-;; XXX: needs better abstraction.
(static-if (condition-case nil
;; compile-time check.
- ;; "new custom" requires widget library.
- (and (require 'widget)
- (require 'custom)
- (fboundp 'custom-declare-variable))
- (error
- (if (null (featurep 'pcustom))
- (progn
- (message "
- ** New CUSTOM library is not detected. If you have that one, e.g. v1.9962,
- ** please specify the installed path of the new CUSTOM library in the file
- ** \"subdirs.el\" and rebuild this package. For example, if you have
- ** installed it in \"/usr/local/share/emacs/site-lisp/custom/\", put the
- ** following line in the file \"/usr/local/share/emacs/site-lisp/subdirs.el\".
- **
- ** (normal-top-level-add-to-load-path '(\"custom\"))
- **
- ** Note that the argument can be a list of subdirectories.
-")
- (sleep-for 1)))
- nil))
+ (if (and (require 'custom)
+ (fboundp 'custom-declare-variable))
+ ;; you have "new custom".
+ t
+ ;; you have custom, but it is "old".
+ (message "\
+ ** \"old custom\" is loaded. See README if you want to use \"new custom\".")
+ (sleep-for 1)
+ nil)
+ ;; you don't have custom.
+ (error nil))
;; you have "new custom". no load-time check.
(require 'custom)
- ;; your custom is "old custom", or you don't have custom library
- ;; at compile-time.
+ ;; your custom is "old custom",
+ ;; or you don't have custom library at compile-time.
(or (condition-case nil
;; load-time check.
;; load "custom" if exists.
(and (require 'custom)
(fboundp 'custom-declare-variable))
(error nil))
- ;; your custom is "old custom", or you don't have custom library.
+ ;; your custom is "old custom",
+ ;; or you don't have custom library.
;; load emulation version of "new custom".
(require 'tinycustom)))
-(provide 'pcustom)
+(require 'product)
+(product-provide (provide 'pcustom) (require 'apel-ver))
-;; end of pcustom.el
+;;; pcustom.el ends here