diff --git a/ext/v8/build.rb b/ext/v8/build.rb
deleted file mode 100644
index 432b0fe..0000000
--- a/ext/v8/build.rb
+++ /dev/null
@@ -1,52 +0,0 @@
-
-LIBV8_COMPATIBILITY = '~> 3.11.8'
-
-def have_rubygem_libv8?
-  require 'rubygems'
-  gem 'libv8', LIBV8_COMPATIBILITY
-  require 'libv8'
-  return true
-rescue Gem::LoadError
-  return false
-rescue LoadError
-  return false
-end
-
-def build_with_system_libv8
-  dir_config('v8')
-  find_header('v8.h') or begin
-    puts <<-EOS
-    The Ruby Racer requires libv8 #{LIBV8_COMPATIBILITY}
-    to be present on your system in order to compile
-    and link, but it could not be found.
-
-    In order to resolve this, you will either need to manually
-    install an appropriate libv8 and make sure that this
-    build process can find it. If you install it into the
-    standard system path, then it should just be picked up
-    automatically. Otherwise, you'll have to pass some extra
-    flags to the build process as a hint.
-
-    If you don't want to bother with all that, there is a
-    rubygem that will do all this for you. You can add
-    following line to your Gemfile:
-        gem 'libv8', '#{LIBV8_COMPATIBILITY}'
-
-    We hope that helps, and we apologize, but now we have
-    to push the eject button on this install.
-
-    thanks,
-    The Mgmt.
-
-    EOS
-    raise "unable to locate libv8. Please see output for details"
-  end
-  $LDFLAGS << " -lv8 "
-end
-
-def build_with_rubygem_libv8
-  require 'libv8'
-  include Libv8
-  $INCFLAGS.insert 0, "#{libv8_include_flags} "
-  $LDFLAGS.insert 0, libv8_objects.join(' ') + " "
-end