diff --git a/Formula/cvs.rb b/Formula/cvs.rb
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+++ b/Formula/cvs.rb
@@ -0,0 +1,64 @@
+require 'formula'
+
+# Based on:
+# Apple Open Source: http://www.opensource.apple.com/source/cvs/cvs-45/
+# MacPorts: https://trac.macports.org/browser/trunk/dports/devel/cvs/Portfile
+# Creating a useful testcase: http://mrsrl.stanford.edu/~brian/cvstutorial/
+
+class Cvs < Formula
+  homepage 'http://cvs.nongnu.org/'
+  url 'http://ftp.gnu.org/non-gnu/cvs/source/feature/1.12.13/cvs-1.12.13.tar.bz2'
+  sha1 '93a8dacc6ff0e723a130835713235863f1f5ada9'
+
+  keg_only :provided_by_osx if MacOS.version < :mavericks
+
+  def patches
+    { :p0 =>
+      [ 'http://www.opensource.apple.com/source/cvs/cvs-45/patches/PR5178707.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/ea.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/endian.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/fixtest-client-20.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/fixtest-recase.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/i18n.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/initgroups.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/nopic.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/remove-info.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/remove-libcrypto.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/tag.diff?txt',
+        'http://www.opensource.apple.com/source/cvs/cvs-45/patches/zlib.diff?txt'
+      ]
+    }
+  end
+
+  def install
+    system "./configure", "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--prefix=#{prefix}",
+                          "--infodir=#{info}",
+                          "--mandir=#{man}",
+                          "--sysconfdir=#{etc}",
+                          "--with-gssapi",
+                          "--enable-pam",
+                          "--enable-encryption",
+                          "--with-external-zlib",
+                          "--enable-case-sensitivity",
+                          "--with-editor=vim",
+                          "ac_cv_func_working_mktime=no"
+    system "make"
+    ENV.deparallelize
+    system "make", "install"
+  end
+
+  test do
+    system "mkdir", "cvsroot"
+
+    cvsroot = %x[echo ${PWD}/cvsroot].chomp
+
+    system "#{bin}/cvs", "-d", cvsroot, "init"
+
+    mkdir "cvsexample" do
+      ENV['CVSROOT'] = "#{cvsroot}"
+      system "#{bin}/cvs", "import", "-m ", "'dir structure'", "cvsexample", "homebrew", "start"
+    end
+  end
+end