I\'m writing a gemspec for a new version of a gem that will now require Ruby 1.9. Previous versions of the gem were ok with Ruby 1.8, but now 1.9 will be required. Is there a wa
gem.required_ruby_version = '1.9.2'
Should solve your problem :-)
From the RubyGems documentation:
# This gem will work with 1.8.6 or greater... spec.required_ruby_version = '>= 1.8.6' # Only with ruby 2.0.x spec.required_ruby_version = '~> 2.0'