* test/ruby/test_extlibs.rb: check existance of extension libraries
  which not depend on outer libraries. (experimental)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49011 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* properties.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49012 b2dd03c8-39d4-4d8f-98ff-823fe69b080e