Hi, I am annoyed by edebug which still breaks pre,post-command-hook in XEmacs 21.4 because the variable-binding-locus function is absent. Normally, those hooks contain paren-nuke-extent and paren-highlight in my environment because I am using paren.el by the following: (paren-set-mode 3 'quiet) Once I used edebug, it sometimes breaks those hooks and paren highlights will never disappear. For instance, it is easy to reproduce it if you are using Gnus: 1. Put the following function in the *scratch* buffer and perform ``M-x edebug-defun'' on the hello-world function. (defun hello-world () (interactive) (let ((current (current-buffer)) (buffer (get-buffer-create "*testing*"))) (set-buffer buffer) (message "Hello World") (set-buffer current))) 2. Enter the Gnus summary buffer and type ``M-x hello-world''. 3. Type SPC several times until it reaches the "Hello World" line. 4. Quit the edebug using the q key. The obstacle arose because pre-command-hook is made buffer-local in the Gnus summary buffer. That local value is saved when edebug starts, and then, restored at the *scratch* buffer. Since the variable-binding-locus function is used for saving pre-command-hook and post-command-hook only, cannot it be replaced with `(current-buffer)' if it is not available? Here is a patch which helps all the released XEmacsen: 2003-10-10 Katsumi Yamaoka <yamaoka(a)jpl.org&gt; * edebug.el (edebug-var-status): Use current-buffer unless the variable-binding-locus function is available. --- edebug.el~ 2003-09-10 22:04:29 +0000 +++ edebug.el 2003-10-10 00:33:07 +0000 ＠＠ -2349,7 +2349,9 ＠＠ has the form (LOCUS . VALUE), where LOCUS can be a buffer \(for a buffer-local binding), a frame (for a frame-local binding), or nil (if the default binding is current)." - (cons (and (fboundp 'variable-binding-locus) (variable-binding-locus var)) + (cons (if (fboundp 'variable-binding-locus) + (variable-binding-locus var) + (current-buffer)) (symbol-value var))) (defun edebug-restore-status (var status)