Don't spawn separate ediff frame as this conflict with my setting in Fvwm:
AddToFunc MyFuncFocusWindow
+ I FlipFocus
+ I WarpToWindow 50 50
DestroyModuleConfig FvwmEvent-NewWindow
*FvwmEvent-NewWindow: Cmd
*FvwmEvent-NewWindow: add_window MyFuncFocusWindow
AddToFunc StartFunction I Module FvwmEvent
AddToFunc StartFunction I FvwmEvent FvwmEvent-NewWindow
Refer to thread: http://permalink.gmane.org/gmane.emacs.help/86918
--- a/.emacs-my Mon Sep 24 19:58:13 2012 +0300
+++ b/.emacs-my Thu Sep 27 00:33:52 2012 +0300
@@ -1862,6 +1862,7 @@
(setq ediff-diff-options "")
(setq ediff-custom-diff-options "-u")
+(setq ediff-window-setup-function 'ediff-setup-windows-plain)
(when window-system
(eval-after-load 'diff-mode