Write Ruby extensions in C++20. Inspired by rice and magnus.

In your extconf.rb file, add the following:

require 'mkmf
$CXXFLAGS += ' -std=c++20' # or newer
require 'rcx/mkmf'

create_header
create_makefile('your_ext')

RCX is licensed under the terms of the Boost Software License, Version 1.0.