* lib/rubygems: Update to RubyGems master ddac51f. Changes:

  * Allow override for the shared gem installation directory for
    rubygems packagers.

  * Lock gem cache files for read and write to improve thread safety.

  * Use io/console when available.

  * Minor cleanup.

* test/rubygems:  ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44157 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/rubygems/defaults.rb b/lib/rubygems/defaults.rb
index 591580b7da..e4bf4e5a7f 100644
--- a/lib/rubygems/defaults.rb
+++ b/lib/rubygems/defaults.rb
@@ -52,6 +52,17 @@ module Gem
   end
 
   ##
+  # Returns binary extensions dir for specified RubyGems base dir or nil
+  # if such directory cannot be determined.
+  #
+  # By default, the binary extensions are located side by side with their
+  # Ruby counterparts, therefore nil is returned
+
+  def self.default_ext_dir_for base_dir
+    nil
+  end
+
+  ##
   # Paths where RubyGems' .rb files and bin files are installed
 
   def self.default_rubygems_dirs