zopfli 1.0.0

Closes Homebrew/homebrew#18150 and Homebrew/homebrew#19435.

Signed-off-by: Mathias Bynens <mathias@qiwi.be>
Signed-off-by: Misty De Meo <mistydemeo@gmail.com>

Formula/zopfli.rb

@@ -0,0 +1,19 @@
+require 'formula'
+
+class Zopfli < Formula
+  homepage 'https://code.google.com/p/zopfli/'
+  url 'https://zopfli.googlecode.com/files/zopfli-1.0.0.zip'
+  sha1 '98ea00216e296bf3a13e241d7bc69490042ea7ce'
+  head 'https://code.google.com/p/zopfli/', :using => :git
+
+  def install
+    # Makefile hardcodes gcc
+    inreplace 'Makefile', 'gcc', ENV.cc
+    system 'make'
+    bin.install 'zopfli'
+  end
+
+  test do
+    system "#{bin}/zopfli"
+  end
+end