emacs_24.4.diff

diff --git a/Library/Formula/emacs.rb b/Library/Formula/emacs.rb
index 591676b..3f9fbc4 100644
--- a/Library/Formula/emacs.rb
+++ b/Library/Formula/emacs.rb
@@ -17,6 +17,7 @@ class Emacs < Formula
   option "with-x", "Include X11 support"
   option "use-git-head", "Use Savannah (faster) git mirror for HEAD builds"
   option "keep-ctags", "Don't remove the ctags executable that emacs provides"
+  option "japanese", "Patch for Japanese input methods"
 
   head do
     if build.include? "use-git-head"
@@ -27,6 +28,13 @@ class Emacs < Formula
 
     depends_on "autoconf" => :build
     depends_on "automake" => :build
+
+    # "--japanese" option:
+    # to apply a patch from MacEmacsJP for Japanese input methods
+    patch :p0 do
+      url "http://plamo.linet.gr.jp/~matsuki/mac/emacs-24.4-20140417-inline.patch"
+      sha1 "90456a6856c1e3a11ca10a73866ee1aea371aad4"
+    end if build.include? "cocoa" and build.include? "japanese"
   end
 
   depends_on "pkg-config" => :build