git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@28112 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
are enabled on MacOS X.
And hide a root window before starting eventloop. (for ruby 1.9)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@28112 b2dd03c8-39d4-4d8f-98ff-823fe69b080e