OpenKinect/libfreenect commit f3a8e29a08d536ba1e3f82b257f6071a998f26ad で変更されたけど微妙に動かなかったので修正

libfreenect.rb

require 'formula'

class Libfreenect <Formula
  url 'https://github.com/OpenKinect/libfreenect/tarball/master'
  version 'master'
  homepage 'http://openkinect.org'
  md5 ''
  
  depends_on 'libusb-freenect'
  depends_on 'cmake'

  def install
    system "cmake . #{std_cmake_parameters}"
    system "make install"
  end
end