homebrew: libogg universal support

gistfile1.txt

diff --git a/Library/Formula/libogg.rb b/Library/Formula/libogg.rb
index 2764176..896465f 100644
--- a/Library/Formula/libogg.rb
+++ b/Library/Formula/libogg.rb
@@ -14,6 +14,8 @@ class Libogg < Formula
   end
 
   def install
+    ENV.universal_binary if build.universal?
+
     system "./autogen.sh" if build.head?
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"