Is there a way to build a gem in such a way so that dependencies can be resolved at installation-time? I want users to be able to "gem install ruby-debug-ide", and have the ruby-debug-ide gem install either ruby-debug-base or ruby-debug-base19, depending on the version of Ruby that they're running. I'm thinking maybe extconf.rb could do this, but just wanted to see if anyone had any ideas. -- Posted via http://www.ruby-forum.com/.