gem 'rake', '~> 13.0', group: %i(development)
gem 'rake-compiler', '< 2'
gem 'rake-compiler-dock', '~> 1.0', group: %i(development)
gem 'rspec', '< 4'
gem 'bundler', '>= 1.16', '< 3', group: %i(development)
gem 'kramdown', '>= 0', group: %i(doc)
gem 'yard', '~> 0.9', group: %i(doc)
gem 'ffi', '~> 1.15.5'
