The Silver Searcher 0.3

The Silver Searcher (ag) is a faster, smarter, replacement for ack (and grep),
written in C.

Closes Homebrew/homebrew#10933.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/the_silver_searcher.rb

@@ -0,0 +1,34 @@
+require 'formula'
+
+class TheSilverSearcher < Formula
+  homepage 'https://github.com/ggreer/the_silver_searcher'
+  url 'https://github.com/ggreer/the_silver_searcher/tarball/0.3'
+  md5 'd45bf240e3219f9392b5b3cc7a66056c'
+  head 'https://github.com/ggreer/the_silver_searcher.git'
+
+  if MacOS.xcode_version >= '4.3'
+    depends_on 'automake' => :build
+    depends_on 'autoconf' => :build
+  end
+  depends_on 'pkg-config' => :build
+  depends_on 'pcre'
+
+
+  def install
+    # Stable tarball does not include pre-generated configure script
+    system "aclocal -I /usr/local/share/aclocal"
+    system "autoconf"
+    system "autoheader"
+    system "automake --add-missing"
+
+    system "./configure", "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--prefix=#{prefix}"
+    system "make"
+    system "make install"
+  end
+
+  def test
+    system "#{bin}/ag --version"
+  end
+end