git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12109 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* common.mk: new target dist * distruby.rb: new file git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11918 b2dd03c8-39d4-4d8f-98ff-823fe69b080e