def add_config(name)
class_eval "def self.\#{name}(value=nil)\n@\#{name} = value if value\nreturn @\#{name} if self.object_id == \#{self.object_id} || defined?(@\#{name})\nname = superclass.\#{name}\nreturn nil if name.nil? && !instance_variable_defined?(\"@\#{name}\")\n@\#{name} = name && !name.is_a?(Module) && !name.is_a?(Symbol) && !name.is_a?(Numeric) && !name.is_a?(TrueClass) && !name.is_a?(FalseClass) ? name.dup : name\nend\n\ndef self.\#{name}=(value)\n@\#{name} = value\nend\n\ndef \#{name}\nself.class.\#{name}\nend\n", __FILE__, __LINE__ + 1
end