merge revision(s) 37410:
* lib/mkmf.rb: fix for if config["libdir"] is nil. * tool/make-snapshot: fix wrong regexp for releasing preview. patched by mame.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@38606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 37410:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@38606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e