mruby/mruby — pull request #2299 by take-cheeze (2014-05-20 13:57:29+00:00)
Title: Support extension '.cc' in source code listing.

Since they are supported in C++ compiler command. (https://github.com/mruby/mruby/blob/2cb54e4b9d523e85b65a30b7af593791e8ac83f0/tasks/mruby_build.rake#L72)