mruby/mruby — pull request #2025 by take-cheeze (2014-04-07 08:48:08+00:00)
Title: Fix C++ files detection for automatic C++ ABI enabling.

Since `MRuby::Gem::Specification#setup`'s call is late as I expected, doing C++ files detection in it is too late.
So it should be done in `MRuby::LoadGems#gem`.