From fe46b2d5f05057dd2d238d71fc2276406d259cef Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 8 Jan 2014 08:13:56 +0000
Subject: [PATCH] rubygems/test_case.rb: fix errors in mkmf tests

* lib/rubygems/test_case.rb (Gem#teardown): BASERUBY is not set
  usually.  fix errors in mkmf tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44526 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/rubygems/test_case.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index ff261f7816..fb5f3008e2 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -315,7 +315,11 @@ class Gem::TestCase < MiniTest::Unit::TestCase
   def teardown
     $LOAD_PATH.replace @orig_LOAD_PATH if @orig_LOAD_PATH
 
-    RbConfig::CONFIG['BASERUBY'] = @orig_BASERUBY
+    if @orig_BASERUBY
+      RbConfig::CONFIG['BASERUBY'] = @orig_BASERUBY
+    else
+      RbConfig::CONFIG.delete('BASERUBY')
+    end
     RbConfig::CONFIG['arch'] = @orig_arch
 
     if defined? Gem::RemoteFetcher then