Install zsh HEAD from git through Homebrew

zsh-git.rb.patch

diff --git a/Library/Formula/zsh.rb b/Library/Formula/zsh.rb
index e7e67a5..4dff75e 100644
--- a/Library/Formula/zsh.rb
+++ b/Library/Formula/zsh.rb
@@ -5,8 +5,11 @@ class Zsh < Formula
   mirror "http://www.zsh.org/pub/zsh-5.0.8.tar.bz2"
   sha256 "8079cf08cb8beff22f84b56bd72bb6e6962ff4718d816f3d83a633b4c9e17d23"
 
+  head "https://github.com/zsh-users/zsh.git"
+
   bottle do
     revision 1
+    cellar :any
     sha256 "0b25363741f6511290d28d56f620ccfda25c1e7938d255f35336bef1c0355e94" => :yosemite
     sha256 "afb1a3bc447b2ba5a8b2a4f30d33750a5195cb08412213a9dc48dc9b7bb4308a" => :mavericks
     sha256 "c68dff49299b118989c53654f668733afe191cdb2bcd965eca849f331ddc68d6" => :mountain_lion
@@ -16,13 +19,14 @@ class Zsh < Formula
 
   deprecated_option "disable-etcdir" => "without-etcdir"
 
+  depends_on "autoconf"
   depends_on "gdbm"
   depends_on "pcre"
 
   # zsh 5.0.8 broke du tab-completion for files, but this has been fixed in
   # bug #35467. We ship our own version of the patch to avoid CHANGELOG conflict.
   # http://sourceforge.net/p/zsh/code/ci/806f73a0b3d3959d5af12ce97e0258b4d4fe7d76/
-  patch :DATA
+  # patch :DATA
 
   def install
     args = %W[
@@ -37,6 +41,7 @@ class Zsh < Formula
       --enable-multibyte
       --enable-pcre
       --enable-zsh-secure-free
+      --enable-zsh-debug
       --with-tcsetpgrp
     ]
 
@@ -46,14 +51,17 @@ class Zsh < Formula
       args << "--enable-etcdir=/etc"
     end
 
+    system "autoreconf"
     system "./configure", *args
 
     # Do not version installation directories.
     inreplace ["Makefile", "Src/Makefile"],
       "$(libdir)/$(tzsh)/$(VERSION)", "$(libdir)"
 
-    system "make", "install"
-    system "make", "install.info"
+    system "make", "install.bin"
+    system "make", "install.modules"
+    system "make", "install.fns"
+    # system "make", "install.info"
   end
 
   def caveats; <<-EOS.undent