Libxml2

Providing a keg only version of libxml2. The one provided by Mac is old and doesn't contain some files used by some games.

Formula/libxml2.rb

@@ -0,0 +1,19 @@
+require 'formula'
+
+class Libxml2 <Formula
+  url 'ftp://xmlsoft.org/libxml2/libxml2-2.7.6.tar.gz'
+  homepage 'http://xmlsoft.org'
+  md5 '7740a8ec23878a2f50120e1faa2730f2'
+
+  def keg_only?
+    :provided_by_osx
+  end
+
+  def install
+    ENV.gcc_4_2
+    system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking"
+    system "make"
+    ENV.j1
+    system "make install"
+  end
+end