COMMIT On Windows, ENV keys are case-insensitive	http://github.com/rubyspec/rubyspec/commit/7e63fbb5aa09c9a078af2b3b7b7dd3f9cbffb0a7

===================================================================
+++ 20101013T032844
@@ 33330 @@
 
  <n>) 
 ConditionVariable#broadcast releases all threads waiting in line for this resource ERROR
+ThreadError: Thread#join: deadlock 0xf7fc7ee0 - mutual join(0xf3fe8998)
 /var/lib/chkbuild/tmp/build/ruby-1.8.7-pth-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `join'
 /var/lib/chkbuild/tmp/build/ruby-1.8.7-pth-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55
 /var/lib/chkbuild/tmp/build/ruby-1.8.7-pth-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `each'

===================================================================
--- 20101012T033433
@@ 33330 @@
 
  <n>) 
 ConditionVariable#broadcast releases all threads waiting in line for this resource ERROR
-ThreadError: Thread#join: deadlock 0xf7fc7ee0 - mutual join(0xf3f34de8)
 /var/lib/chkbuild/tmp/build/ruby-1.8.7-pth-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `join'
 /var/lib/chkbuild/tmp/build/ruby-1.8.7-pth-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55
 /var/lib/chkbuild/tmp/build/ruby-1.8.7-pth-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `each'