* lisp/emacs-lisp/helpers.el (string-empty-p): New function.

[bpt/emacs.git] / lisp / help-macro.el

diff --git a/lisp/help-macro.el b/lisp/help-macro.el
index 0600484..f0fda35 100644 (file)
--- a/lisp/help-macro.el
+++ b/lisp/help-macro.el
@@ -1,6 +1,6 @@
 ;;; help-macro.el --- makes command line help such as help-for-help
 
-;; Copyright (C) 1993-1994, 2001-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1993-1994, 2001-2013 Free Software Foundation, Inc.
 
 ;; Author: Lynn Slater <lrs@indetech.com>
 ;; Maintainer: FSF
@@ -69,6 +69,11 @@
 
 (require 'backquote)
 
+;; This needs to be autoloaded because it is used in the
+;; make-help-screen macro.  Using (bound-and-true-p three-step-help)
+;; is not an acceptable alternative, because nothing loads help-macro
+;; in a normal session, so any user customization would never be applied.
+;;;###autoload
 (defcustom three-step-help nil
   "Non-nil means give more info about Help command in three steps.
 The three steps are simple prompt, prompt with all options, and
@@ -129,11 +134,11 @@ and then returns."
                   (when (or (eq char ??) (eq char help-char)
                             (memq char help-event-list))
                     (setq config (current-window-configuration))
-                    (switch-to-buffer-other-window "*Help*")
+                    (pop-to-buffer " *Metahelp*" nil t)
                     (and (fboundp 'make-frame)
-                         (not (eq (window-frame (selected-window))
+                         (not (eq (window-frame)
                                   prev-frame))
-                         (setq new-frame (window-frame (selected-window))
+                         (setq new-frame (window-frame)
                                config nil))
                     (setq buffer-read-only nil)
                     (let ((inhibit-read-only t))