# It also works with MRB_NO_STDIO.
MRuby::GemBox.new do |conf|
# Use standard Math module
conf.gem :core => "mruby-math"
# Use Rational/Complex numbers
conf.gem :core => "mruby-rational"
conf.gem :core => "mruby-complex"
# Use Complex math functions in CMath module
conf.gem :core => "mruby-cmath"
# Use Multi-precision Integer
conf.gem :core => "mruby-bigint"
end