cppunit: use options dsl + style cleanups

Formula/cppunit.rb

@@ -1,20 +1,17 @@
 require 'formula'
 
 class Cppunit < Formula
-  url 'http://downloads.sourceforge.net/project/cppunit/cppunit/1.12.1/cppunit-1.12.1.tar.gz'
   homepage 'http://sourceforge.net/apps/mediawiki/cppunit/'
-  md5 'bd30e9cf5523cdfc019b94f5e1d7fd19'
+  url 'http://downloads.sourceforge.net/project/cppunit/cppunit/1.12.1/cppunit-1.12.1.tar.gz'
+  sha1 'f1ab8986af7a1ffa6760f4bacf5622924639bf4a'
 
-  def options
-    [["--universal", "Build for both 32 & 64 bit Intel."]]
-  end
+  option :universal
 
   def install
-    args = ["--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking"]
+    ENV.universal_binary if build.universal?
 
-    ENV.universal_binary if ARGV.build_universal?
-
-    system "./configure", *args
+    system "./configure", "--disable-debug", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}"
     system "make install"
   end
 end