extract prereq.status
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
extract prereq.status
prereq and override dynamic values at runtime.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e