How to use the gems of Ruby 2.1 in Ruby 1.9 in batch -

i have both ruby 1.9 , 2.1 installed in computer. wanting use several of gems installed ruby 2.1 in ruby 1.9. however, ruby 1.9 can't find them.

i tried solve problem setting environmental variable rubylib since there many gems needed used can't 1 one. there easier way?

for example, 1 of packages use in ruby 1.9 pango.

its path ~/ruby/lib/ruby/gems/2.1.0/gems/pango-2.2.0/

all of packages installed ruby 2.1 can found @ ~/ruby/lib/ruby/gems/2.1.0/gems

thanks you.

i'd suggest use manager rvm (https://rvm.io/) or rbenv (https://github.com/sstephenson/rbenv) avoid manually configuring environment. use rvm when have 1 ruby version installed.