brew updateしたらemacsに日本語対応パッチが取り込まれていました。これは嬉しい。

$ brew info emacs
emacs: stable 24.3, HEAD
Not installed
From: https://github.com/mxcl/homebrew/commits/master/Library/Formula/emacs.rb
==> Dependencies
Build: pkg-config ✔
Optional: gnutls ✘
==> Options
	Build a Cocoa version of emacs
	Patch for Japanese input methods
	Don't remove the ctags executable that emacs provides
	Enable sRGB colors in the Cocoa version of emacs
	Use Savannah (faster) git mirror for HEAD builds
	Build with gnutls support
	Include X11 support