Hi all, I running emacs 21.4.1. I'm trying to do some fancy ediff stuff. Actually not terribly fancy, I just want to invoke it from the command line with parmeters similar to "diff", specifically using the -L option to give more descriptive names to the buffers. Currently I can ediff two files by doing the following... emacs --eval='(progn (setq ediff-diff-options "-wbB") (ediff-files "file1" "file2"))' Maybe there's an easier/better way? ANYWAY, The path I'm currently on requires me to hook into the "ediff-startup-hooks" with the following code in my .emacs file... (require 'ediff) ;; Get rid of the annoying little (separate) ediff window and ;; turn it into a 3rd pane in the main emacs window. (setq ediff-window-setup-function 'ediff-setup-windows-plain) ;; Put files side-by-side ;(setq ediff-split-window-function 'split-window-horizontally) (defun my-ediff-startup-hooks () (set-buffer ediff-buffer-A) (rename-buffer "bobA") (set-buffer ediff-buffer-B) (rename-buffer "bobB") ) (add-hook 'ediff-startup-hooks 'my-ediff-startup-hooks) OK, so this is just baby-step code because clearly "bobA" and "bobB" are not useful, but I can't even get THIS to work! I even tried inserting a line I knew would fail in the defined function (something like (undefined_bob_qwerty)) and I never got a complaint when I fired up a new instance of ediff. (but I know it was picking up my changes to .emacs because if I made a syntax error then it would warn me about that.) What am I doing wrong? Thanks, Bob