hello, I use emacs23 to edit Objective-C files,
I opened a .m file, and run "imenu-add-member-index" command,
bug I got a error: invalid-function imenu-progress-message,
I checked cc-menus.el, in function cc-imenu-objc-function used imenu-progress-message,
but cc-menus.el didn't load imenu.
I add "(require 'imenu)" to cc-menus.el and byte-compile it, It works.

so I think cc-menus.el need load imenu to fix this.