Allow fuzzy ruby version requirements.

* Use `Gem::Requirement` and `Gem::Version` to parse and check
  ruby version, engine_version and patchlevel requirements.
* Added new class `RubyVersionRequirement` to handle this functionality.
* Added tests that cover the `RubyVersionRequirement` class.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/bundler/ruby_dsl.rb b/lib/bundler/ruby_dsl.rb
index b29fc019..c1f83d3a 100644
--- a/lib/bundler/ruby_dsl.rb
+++ b/lib/bundler/ruby_dsl.rb
@@ -5,7 +5,7 @@ module Bundler
       raise GemfileError, "Please define :engine" if options[:engine_version] && options[:engine].nil?
 
       raise GemfileError, "ruby_version must match the :engine_version for MRI" if options[:engine] == "ruby" && options[:engine_version] && ruby_version != options[:engine_version]
-      @ruby_version = RubyVersion.new(ruby_version, options[:patchlevel], options[:engine], options[:engine_version])
+      @ruby_version = RubyVersionRequirement.new(ruby_version, options[:patchlevel], options[:engine], options[:engine_version])
     end
   end
 end