require 'rake/rdoctask' if failed to require 'rdoc/task'

fixes a regression introduced by b921679d0dd3d5ca16f0362c2b34e7703cfe15e5
require 'rdoc/task' fails if the system RDoc version is below 2.4.2 (e.g. CRuby 1.8.7)

1 files changed, 6 insertions, 1 deletions

diff --git a/Rakefile b/Rakefile
index 92b2e77963..70276fea78 100755
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,11 @@
 #!/usr/bin/env rake
 
-require 'rdoc/task'
+
+begin
+  require 'rdoc/task'
+rescue LoadError
+  require 'rake/rdoctask'
+end
 require 'net/http'
 
 $:.unshift File.expand_path('..', __FILE__)