;; Copyright (C) 2002-2004, Yuji Minejima <ggb01164@nifty.ne.jp>
;; ALL RIGHTS RESERVED.
;;
;; $Id: stand-in.lisp,v 1.1 2004/07/22 07:47:14 yuji Exp $
;; 
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions
;; are met:
;; 
;;  * Redistributions of source code must retain the above copyright
;;    notice, this list of conditions and the following disclaimer.
;;  * Redistributions in binary form must reproduce the above copyright
;;    notice, this list of conditions and the following disclaimer in
;;    the documentation and/or other materials provided with the
;;    distribution.
;; 
;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
;; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
;; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
;; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
;; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
;; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
;; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

;;; Commentary:
;; Supply a customized DEFUN which forces replacement of function definitions
;; even if the target symbol is in the COMMON-LISP package.

(defpackage "STAND-IN"
  (:shadow "DEFUN")
  (:use "COMMON-LISP"))

(in-package "STAND-IN")

#+clisp
(defmacro defun (&rest args)
  `(handler-bind ((system::simple-package-error (invoke-restart 'continue)))
    (cl:defun ,@args)))
#+cmu
(error "stand-in::defun is not define for cmucl.")