handle default gems in ruby 1.9

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/bundler/source/rubygems.rb b/lib/bundler/source/rubygems.rb
index ab1c6252dc..880f78ee7d 100644
--- a/lib/bundler/source/rubygems.rb
+++ b/lib/bundler/source/rubygems.rb
@@ -279,7 +279,11 @@ module Bundler
 
       def gem_dir_exists?(spec)
         return true if spec.name == "bundler"
+        # Ruby 2 default gems
         return true if spec.loaded_from.include?("specifications/default/")
+        # Ruby 1.9 default gems
+        return true if spec.summary =~ /is bundled with Ruby/
+
         File.directory?(spec.full_gem_path)
       end
     end