anchor.diff:  (export '(*enable-recursive-minibuffers*
             *minibuffer-completion-function*
             *minibuffer-file-complete-function*
  +          *minibuffer-activate-hook*
  +          *minibuffer-deactivate-hook*
             *minibuf-keymap*
             minibuffer-prompt-attribute
             minibuffer-window-p
  
positive.code: (defvar *minibuffer-completion-function* nil)
  (defvar *minibuffer-file-complete-function* nil)
  
  (defclass minibuffer-window (window) ())
  
  (defun make-minibuffer-window (buffer)
  
negative.code:                                 (put-text-property start end :field t)))
                              (move-point (current-point) minibuf-buffer-prev-point)
                              (when (= 1 *minibuf-read-line-depth*)
                                (run-hooks *minibuffer-deactivate-hook*)
                                (%switch-to-buffer *echoarea-buffer* nil nil)
                                ))))))
                  (editor-abort (c)
  