Add `mruby-complex` and `mruby-rational` to `default.gembox`.
MODIFY
mrbgems/default.gembox
mrbgems/default.gembox
@@ -71,6 +71,10 @@ MRuby::GemBox.new do |conf|
# Use toplevel object (main) methods extension
conf.gem :core => "mruby-toplevel-ext"
+ # Use Rational/Complex numbers
+ conf.gem :core => "mruby-rational"
+ conf.gem :core => "mruby-complex"
+
# Generate mirb command
conf.gem :core => "mruby-bin-mirb"

Add `mruby-complex` and `mruby-rational` to `default.gembox`.