New formula chipmunk

Fast and lightweight 2D rigid body physics library in C

Signed-off-by: David Höppner <0xffea@gmail.com>

* split commit
* rewrote commit message

Formula/chipmunk.rb

@@ -0,0 +1,15 @@
+require 'formula'
+
+class Chipmunk <Formula
+  head 'http://chipmunk-physics.googlecode.com/svn/trunk'
+  homepage 'http://code.google.com/p/chipmunk-physics/'
+
+  depends_on 'cmake'
+
+  def install
+    system "cmake", "-DCMAKE_INSTALL_PREFIX=#{prefix}",
+                    "-DCMAKE_PREFIX_PATH=#{prefix}",
+                    "-DPREFIX=#{prefix}", "."
+    system "make install"
+  end
+end