mkconfig.rb: must not be frozen
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53017 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mkconfig.rb: must not be frozen
expand CONFIG hash. [ruby-core:72006] [Bug #11798]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53017 b2dd03c8-39d4-4d8f-98ff-823fe69b080e