MRuby::Build.new do |conf| toolchain :gcc end MRuby::Build.new('no_boxing') do |conf| toolchain :gcc conf.gembox 'default' end MRuby::Build.new('word_boxing') do |conf| toolchain :gcc conf.gembox 'default' conf.compilers.each do |c| c.defines += %w(MRB_WORD_BOXING) end end MRuby::Build.new('nan_boxing') do |conf| toolchain :gcc conf.gembox 'default' conf.compilers.each do |c| c.defines += %w(MRB_NAN_BOXING) end end