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-rw-r--r--activesupport/lib/active_support.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/activesupport/lib/active_support.rb b/activesupport/lib/active_support.rb
index e7117e22be..94f14ead01 100644
--- a/activesupport/lib/active_support.rb
+++ b/activesupport/lib/active_support.rb
@@ -25,6 +25,13 @@ $:.unshift(File.dirname(__FILE__))
$:.unshift(File.dirname(__FILE__) + "/active_support/vendor")
require 'rubygems'
+begin
+ require 'builder'
+rescue LoadError
+ $stderr.puts 'Builder has been unbundled from Active Support in Rails 2.0.'
+ $stderr.puts 'Please `gem install builder`'
+ raise
+end
require 'active_support/basic_object'