diff --git a/Library/Formula/growl.rb b/Library/Formula/growl.rb
new file mode 100644
index 000000000000..a807a4327a4a
--- /dev/null
+++ b/Library/Formula/growl.rb
@@ -0,0 +1,104 @@
+require 'formula'
+
+class ISO8601ParserUnparser < Formula
+  url 'https://bitbucket.org/boredzo/iso-8601-parser-unparser/downloads/ISO-8601-parser-0.6.zip'
+  head 'https://bitbucket.org/boredzo/iso-8601-parser-unparser', :using => :hg
+  homepage 'http://boredzo.org/iso8601dateformatter/'
+  sha1 '3f1228d71f3375c038805850ee468688d65d49a4'
+  version '0.6'
+end
+
+class Growl < Formula
+  url 'http://growl.info/hg/growl/archive/c9bc72de2621.tar.bz2'
+  head 'https://code.google.com/p/growl/', :using => :hg
+  homepage 'http://www.growl.info/'
+  sha1 '8e7118cee3f992aba4a3f2b80d1c446d5df067cb'
+  version '1.3.3'
+  
+  depends_on 'osx/plist' => :ruby unless ARGV.include? "--disable-hardware"
+
+  def options
+    [
+      ["--enable-codesign", "Enable code signature"],
+      ["--disable-notify", "Don't include the growlnotify application"],
+      ["--disable-hardware", "Don't include the HardwareGrowler application"],
+    ]
+  end
+
+  def patches
+    p = []
+
+    unless ARGV.include? "--enable-codesign"
+      # Disable code sign in Growl.app
+      p << "https://raw.github.com/gist/1374159/"
+
+      unless ARGV.include? "--disable-hardware"
+        # Disable code sign in HardwareGrowler.app
+        p << "https://raw.github.com/gist/1379714/"
+      end
+    end
+
+    return p
+  end
+
+  def install
+    # Include dependencies not provided by the tarball.
+    unless ARGV.build_head?
+      p = (Pathname.getwd+'external_dependencies'+'iso8601parser')
+      p.mkpath
+      ISO8601ParserUnparser.new.brew{p.install Dir['*']}
+    end
+    
+    ohai "You need to have the developer certificate already present in Keychain" if ARGV.include? "--enable-codesign"
+
+    buildPath = Pathname.getwd+"build"
+
+    system "xcodebuild -configuration Release SYMROOT=#{buildPath}"
+    prefix.install "build/Release/Growl.app"
+
+    unless ARGV.include? "--disable-notify"
+      system "xcodebuild -project Extras/growlnotify/growlnotify.xcodeproj -configuration Release SYMROOT=#{buildPath}"
+      bin.install "build/Release/growlnotify"
+      man.install "Extras/growlnotify/growlnotify.1"
+    end
+
+    unless ARGV.include? "--disable-hardware"
+      # Build using the previously compiled Growl.framework
+      system "xcodebuild -project Extras/HardwareGrowler/HardwareGrowler.xcodeproj -configuration Release SYMROOT=#{buildPath}"
+      prefix.install "build/Release/HardwareGrowler.app"
+    end
+  end
+
+  def caveats
+    # Infos on code signing
+    s = <<-EOS.undent
+          The code needs to be signed to compile, by default the signature is disable with patches.
+          It may be useful to re-enable the code sign, which can be done with "--enable-codesign".
+
+          The easiest way to enable code signature is to add manually a self-signed certificate:
+
+          To do so, open "Keychain Access.app";
+            "Keychain Access" Menu > "Certificate Assistant" > "Create a Certificate..."
+
+          The certificate name must be :
+            3rd Party Mac Developer Application: The Growl Project, LLC
+          Choose "Code Signing" as Certificate Type.
+
+
+    EOS
+
+    # Info on .app
+    s += <<-EOS.undent
+          Growl.app and HardwareGrowler.app are installed in:
+            #{prefix}
+
+           To link the applications to a normal Mac OS X location:
+             brew linkapps
+           or:
+             ln -s #{prefix}/Growl.app /Applications
+             ln -s #{prefix}/HardwareGrowler.app /Applications
+        EOS
+
+    return s
+  end
+end
diff --git a/Library/Formula/growly.rb b/Library/Formula/growly.rb
index 4047462bbbdc..3e38c98f71e8 100644
--- a/Library/Formula/growly.rb
+++ b/Library/Formula/growly.rb
@@ -5,6 +5,7 @@ class Growly < Formula
   head 'https://github.com/ryankee/growly.git'
   url 'https://github.com/downloads/ryankee/growly/growly-v0.2.0.tar.gz'
   md5 'a3e4922d619cfeb00009dc55163f0974'
+  depends_on 'growl'
 
   def install
     bin.install 'growly'