git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@30479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
specified to use winsock2 by user.
this problem is reported by kosaki.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@30479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e