* lib/rake: Import Rake 0.9.2

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32217 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rake/rule_recursion_overflow_error.rb

@@ -0,0 +1,20 @@
+
+module Rake
+
+  # Error indicating a recursion overflow error in task selection.
+  class RuleRecursionOverflowError < StandardError
+    def initialize(*args)
+      super
+      @targets = []
+    end
+
+    def add_target(target)
+      @targets << target
+    end
+
+    def message
+      super + ": [" + @targets.reverse.join(' => ') + "]"
+    end
+  end
+
+end