X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/6726c25e2d185adcf10e0d95f70f3ab26528cadc..b9345dfd4b5479ec624f1870723a8ea5c9c719e7:/lisp/emacs-lisp/derived.el

diff --git a/lisp/emacs-lisp/derived.el b/lisp/emacs-lisp/derived.el
index ef30d7ca33..1db98ac39c 100644
--- a/lisp/emacs-lisp/derived.el
+++ b/lisp/emacs-lisp/derived.el
@@ -1,12 +1,12 @@
 ;;; derived.el --- allow inheritance of major modes
 ;; (formerly mode-clone.el)
 
-;; Copyright (C) 1993, 1994, 1999, 2001, 2002, 2003, 2004, 2005, 2006,
-;;   2007, 2008, 2009  Free Software Foundation, Inc.
+;; Copyright (C) 1993-1994, 1999, 2001-2011  Free Software Foundation, Inc.
 
 ;; Author: David Megginson (dmeggins@aix1.uottawa.ca)
 ;; Maintainer: FSF
 ;; Keywords: extensions
+;; Package: emacs
 
 ;; This file is part of GNU Emacs.
 
@@ -195,16 +195,16 @@ See Info node `(elisp)Derived Modes' for more details."
     `(progn
        (unless (get ',hook 'variable-documentation)
 	 (put ',hook 'variable-documentation
-	      ,(format "Hook run when entering %s mode.
+	      (purecopy ,(format "Hook run when entering %s mode.
 No problems result if this variable is not bound.
 `add-hook' automatically binds it.  (This is true for all hook variables.)"
-		       name)))
+		       name))))
        (unless (boundp ',map)
 	 (put ',map 'definition-name ',child))
-       (defvar ,map (make-sparse-keymap))
+       (with-no-warnings (defvar ,map (make-sparse-keymap)))
        (unless (get ',map 'variable-documentation)
 	 (put ',map 'variable-documentation
-	      ,(format "Keymap for `%s'." child)))
+	      (purecopy ,(format "Keymap for `%s'." child))))
        ,(if declare-syntax
 	    `(progn
 	       (unless (boundp ',syntax)
@@ -212,7 +212,7 @@ No problems result if this variable is not bound.
 	       (defvar ,syntax (make-syntax-table))
 	       (unless (get ',syntax 'variable-documentation)
 		 (put ',syntax 'variable-documentation
-		      ,(format "Syntax table for `%s'." child)))))
+		      (purecopy ,(format "Syntax table for `%s'." child))))))
        ,(if declare-abbrev
 	    `(progn
 	       (put ',abbrev 'definition-name ',child)
@@ -220,7 +220,7 @@ No problems result if this variable is not bound.
 		 (progn (define-abbrev-table ',abbrev nil) ,abbrev))
 	       (unless (get ',abbrev 'variable-documentation)
 		 (put ',abbrev 'variable-documentation
-		      ,(format "Abbrev table for `%s'." child)))))
+		      (purecopy ,(format "Abbrev table for `%s'." child))))))
        (put ',child 'derived-mode-parent ',parent)
        ,(if group `(put ',child 'custom-mode-group ,group))
 
@@ -230,7 +230,7 @@ No problems result if this variable is not bound.
 					; Run the parent.
 	 (delay-mode-hooks
 
-	  (,(or parent 'kill-all-local-variables))
+	  (,(or parent 'fundamental-mode))
 					; Identify the child mode.
 	  (setq major-mode (quote ,child))
 	  (setq mode-name ,name)
@@ -456,5 +456,4 @@ Where the new table already has an entry, nothing is copied from the old one."
 
 (provide 'derived)
 
-;; arch-tag: 630be248-47d1-4f02-afa0-8207de0ebea0
 ;;; derived.el ends here