Index: emacs/lisp/help-mode.el
diff -c emacs/lisp/help-mode.el:1.31 emacs/lisp/help-mode.el:1.32
*** emacs/lisp/help-mode.el:1.31 Sun Mar 6 18:32:32 2005
--- emacs/lisp/help-mode.el Mon May 16 03:31:32 2005
***************
*** 169,174 ****
--- 169,186 ----
(goto-char (cdr location))))
'help-echo (purecopy"mouse-2, RET: find variable's definition"))
+ (define-button-type 'help-face-def
+ :supertype 'help-xref
+ 'help-function (lambda (fun file)
+ (require 'find-func)
+ ;; Don't use find-function-noselect because it follows
+ ;; aliases (which fails for built-in functions).
+ (let ((location
+ (find-function-search-for-symbol fun 'defface file)))
+ (pop-to-buffer (car location))
+ (goto-char (cdr location))))
+ 'help-echo (purecopy "mouse-2, RET: find face's definition"))
+
;;;###autoload
(defun help-mode ()
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