How to enable global menu bar for Emacs on Ubuntu (Unity 11.04)

I use latest Ubuntu 11.04 which has Unity desktop. I am learning to use Emacs 23.

As you know, Unity has top panel. I want to enable global menu bar for Emacs so that I could save valuable screen space. (I use small screen laptop)

How to enable globa开发者_StackOverflowl menu bar? Your help will be much appreciated. Thank you.

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1. Use your favorite editor to open this file: /usr/lib/gtk-2.0/2.10.0/menuproxies/libappmenu.so
2. Find the word "emacs"
3. Change "emacs" to other word
4. Save the file
5. sudo ldconfig

update:The file of "libappmenu.so" moved to "/usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/menuproxies" now in ubuntu 12.04.

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appmenu-gtk (which provides the global menu bar) specifically blacklisted emacs since it does not play nicely together so unfortunately you probably can't use it with emacs.

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Cleaner way to circument the blacklist:

ln -s /usr/bin/emacs somewhere_on_PATH/emacs-with-global-menu

any name except "emacs" works.

You might need workaround for updating menus from http://code.google.com/p/gnome2-globalmenu/issues/detail?id=357#c8 (don't know if still relevant, or if that's the only problem):

(defun menuupdate () (menu-bar-mode -1) (menu-bar-mode 1)) 
(add-hook 'window-configuration-change-hook 'menuupdate)