Index: plist-3.1.0/Rakefile
===================================================================
--- plist-3.1.0.orig/Rakefile
+++ plist-3.1.0/Rakefile
@@ -15,7 +15,13 @@ require 'rake/testtask'
 require 'rake/packagetask'
 require 'rake/gempackagetask'
 require 'rake/contrib/rubyforgepublisher'
-require 'rdoc/task'
+begin
+  require 'rdoc/task'
+  doctask = RDoc::Task
+rescue LoadError
+  require 'rake/rdoctask'
+  doctask = Rake::RDocTask
+end
 
 $:.unshift(File.dirname(__FILE__) + "/lib")
 require 'plist'
@@ -104,7 +110,7 @@ task :update_rdoc => [ :rdoc ] do
 end
 
 # Genereate the RDoc documentation
-RDoc::Task.new do |rdoc|
+doctask.new do |rdoc|
   rdoc.title = "All-purpose Property List manipulation library"
   rdoc.main  = "README.rdoc"