install extra libraries
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
install extra libraries
extra libraries to be installed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e