diff --git a/Formula/lsyncd.rb b/Formula/lsyncd.rb
new file mode 100644
index 0000000000..9e79502e6a
--- /dev/null
+++ b/Formula/lsyncd.rb
@@ -0,0 +1,77 @@
+require 'formula'
+
+class Lsyncd < Formula
+  homepage 'https://github.com/axkibe/lsyncd'
+  url 'https://github.com/axkibe/lsyncd/archive/release-2.1.5.tar.gz'
+  sha1 '2b8eb169365edc54488a97435bbd39ae4a6731b8'
+
+  depends_on :automake
+  depends_on 'asciidoc' => :build
+  depends_on 'docbook' => :build
+  depends_on 'pkg-config' => :build
+  depends_on 'lua'
+
+  resource 'xnu' do
+    # Note: Do not use MacOS::version -- the version number is not
+    # enough, we need the patch number as well.
+    osx_version = `sw_vers -productVersion`.strip
+    case osx_version
+      when "10.7.5"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-1699.32.7.tar.gz'
+        sha1 'da3df48952b40ad3b8612c7f639b8bf0f92fb414'
+      when "10.8"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-2050.7.9.tar.gz'
+        sha1 '9aaf1e0b0a148ff303577161fecaf3ea6188aa1b'
+      when "10.8.1"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-2050.9.2.tar.gz'
+        sha1 '2bd58959afc5ac8f2c9fa3d693882acc96b25321'
+      when "10.8.2"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-2050.18.24.tar.gz'
+        sha1 '3a2a0b3629cb215b17aca3bb365b8b10b8b408fe'
+      when "10.8.3"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-2050.22.13.tar.gz'
+        sha1 'a002806d1e64505c6a98c10af26186454818a9ff'
+      when "10.8.4"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-2050.24.15.tar.gz'
+        sha1 'a080f28b7385b0cc63f9ba5a07d922d53ea0a4a3'
+      when "10.8.5"
+        url 'http://www.opensource.apple.com/tarballs/xnu/xnu-2050.48.11.tar.gz'
+        sha1 '1f6860148f8231a53a6b393aa1af589cdedfc70c'
+      when "10.9"
+        url "http://www.opensource.apple.com/tarballs/xnu/xnu-2422.1.72.tar.gz"
+        sha1 "c7bdc40396df3c51ece934c0e3b4a19b063ea34c"
+    else
+      # If raised, go to http://www.opensource.apple.com/ and find the XNU
+      # version used by your version of OSX.
+      raise Homebrew::InstallationError.new self, "No XNU version known for OSX #{osx_version}"
+    end
+  end
+
+  def install
+    # XNU Headers
+    resource('xnu').stage buildpath/'xnu'
+    ENV.append 'CPPFLAGS', "-I./xnu"
+
+    # Docbook Catalog
+    docbook = Formula.factory 'docbook'
+    ENV.append 'XML_CATALOG_FILES', docbook.opt_prefix/'docbook/xml/4.5/catalog.xml'
+
+    # Asciidoc Binary
+    a2x = Formula.factory 'asciidoc'
+    a2x_path = a2x.bin/'a2x'
+    inreplace "Makefile.am", "$(A2X)", a2x_path
+
+    system "autoreconf", "--install"
+    system "./configure", "--disable-dependency-tracking",
+                          "--with-fsevents", "--without-inotify",
+                          "--prefix=#{prefix}"
+
+    system "make"
+    system "make", "install"
+
+  end
+
+  def test
+    system "lsyncd", "--version"
+  end
+end