If you want to use this package as your default system ruby, as root
create symbolic links like so (overwriting any previous default):

 ln -sf /usr/local/bin/ruby40 /usr/local/bin/ruby
 ln -sf /usr/local/bin/bundle40 /usr/local/bin/bundle
 ln -sf /usr/local/bin/bundler40 /usr/local/bin/bundler
 ln -sf /usr/local/bin/erb40 /usr/local/bin/erb
 ln -sf /usr/local/bin/gem40 /usr/local/bin/gem
 ln -sf /usr/local/bin/irb40 /usr/local/bin/irb
 ln -sf /usr/local/bin/minitest40 /usr/local/bin/minitest
 ln -sf /usr/local/bin/racc40 /usr/local/bin/racc
 ln -sf /usr/local/bin/rake40 /usr/local/bin/rake
 ln -sf /usr/local/bin/rbs40 /usr/local/bin/rbs
 ln -sf /usr/local/bin/rdbg40 /usr/local/bin/rdbg
 ln -sf /usr/local/bin/rdoc40 /usr/local/bin/rdoc
 ln -sf /usr/local/bin/ri40 /usr/local/bin/ri
 ln -sf /usr/local/bin/syntax_suggest40 /usr/local/bin/syntax_suggest
 ln -sf /usr/local/bin/test-unit40 /usr/local/bin/test-unit
 ln -sf /usr/local/bin/typeprof40 /usr/local/bin/typeprof

The ruby-shims package is also available to automatically select an
appropriate Ruby version per-project directory or system-wide.
