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+;;; apel-version.el --- Declare APEL version.
+
+;; Copyright (C) 1999 Shuhei KOBAYASHI
+
+;; Author: Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
+;;         Keiichi Suzuki <keiichi@nanap.org>
+;; Keywords: compatibility
+
+;; This file is part of APEL (A Portable Emacs Library).
+
+;; 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 the Free Software Foundation; either version 2, or (at
+;; your option) any later version.
+
+;; This program 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 this program; see the file COPYING.  If not, write to
+;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; Put the following lines to each file of APEL package.
+;;
+;; (require 'product)
+;; (product-provide (provide FEATURE) (require 'apel-ver))
+
+;;; Code:
+
+(require 'product)                     ; beware of circular dependency.
+(provide 'apel-ver)                    ; these two files depend on each other.
+
+(product-provide 'apel-ver
+  (product-define "APEL" nil '(9 23))  ; comment.
+  ;; (product-define "APEL" nil '(9 24))       ;
+  ;; (product-define "APEL" nil '(9 25))       ;
+  ;; (product-define "APEL" nil '(9 26))       ;
+  )
+
+(defun apel-version ()
+  "Print APEL version."
+  (interactive)
+  (let ((product-info (product-string-1 'apel-ver t)))
+    (if (interactive-p)
+       (message "%s" product-info)
+      product-info)))
+
+;;; @ End.
+;;;
+
+;;; apel-version.el ends here.