Re: debug-on-entry with empty functions.

[Richard Stallman]

I think this is the right fix.

*** debug.el    27 Dec 2004 10:46:54 -0500      1.64
--- debug.el    24 Feb 2005 06:09:25 -0500      
***************
*** 705,710 ****
--- 705,714 ----
        ;; Skip the interactive form.
        (if (eq 'interactive (car-safe (car tail))) (setq tail (cdr tail)))
        (unless (eq flag (equal (car tail) '(debug 'debug)))
+         ;; If the function has no body, add nil as a body element.
+         (when (null tail)
+           (setq tail (list nil))
+           (nconc defn tail))
          ;; Add/remove debug statement as needed.
          (if (not flag)
              (progn (setcar tail (cadr tail))