--- origsrc/ruby-2.0.0-p481/lib/rubygems.rb	2013-11-12 20:59:08.000000000 -0600
+++ src/ruby-2.0.0-p481/lib/rubygems.rb	2014-08-21 19:06:48.046281500 -0500
@@ -119,7 +119,6 @@ module Gem
 
   WIN_PATTERNS = [
     /bccwin/i,
-    /cygwin/i,
     /djgpp/i,
     /mingw/i,
     /mswin/i,