* lib/rubygems: Update to RubyGems HEAD(c202db2).

  this version contains many enhancements see http://git.io/vtNwF
* test/rubygems: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51092 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 8 insertions, 1 deletions

diff --git a/lib/rubygems/ext/builder.rb b/lib/rubygems/ext/builder.rb
index 548f1262a8..abcc09ce57 100644
--- a/lib/rubygems/ext/builder.rb
+++ b/lib/rubygems/ext/builder.rb
@@ -66,9 +66,11 @@ class Gem::Ext::Builder
       # TODO use Process.spawn when ruby 1.8 support is dropped.
       rubygems_gemdeps, ENV['RUBYGEMS_GEMDEPS'] = ENV['RUBYGEMS_GEMDEPS'], nil
       if verbose
+        puts("current directory: #{Dir.pwd}")
         puts(command)
         system(command)
       else
+        results << "current directory: #{Dir.pwd}"
         results << command
         results << `#{command} #{redirector}`
       end
diff --git a/lib/rubygems/ext/ext_conf_builder.rb b/lib/rubygems/ext/ext_conf_builder.rb
index d11d1ac328..f5c4c8ce84 100644
--- a/lib/rubygems/ext/ext_conf_builder.rb
+++ b/lib/rubygems/ext/ext_conf_builder.rb
@@ -35,7 +35,12 @@ class Gem::Ext::ExtConfBuilder < Gem::Ext::Builder
         begin
           run cmd, results
         ensure
-          FileUtils.mv 'mkmf.log', dest_path if File.exist? 'mkmf.log'
+          if File.exist? 'mkmf.log'
+            results << "To see why this extension failed to compile, please check" \
+              " the mkmf.log which can be found here:\n"
+            results << "  " + File.join(dest_path, 'mkmf.log') + "\n"
+            FileUtils.mv 'mkmf.log', dest_path
+          end
           siteconf.unlink
         end