daru.gemspec in daru-0.0.1 vs daru.gemspec in daru-0.0.2

@@ -3,12 +3,11 @@
 
 require 'version.rb'
 
 DESCRIPTION = <<MSG
 Daru (Data Analysis in RUby) is a library for storage, analysis and manipulation
-of data. It aims to be the preferred data storage library for all Ruby gems, promoting 
-interoperability and easy of use between various ruby packages.
+of data.
 MSG
 
 Gem::Specification.new do |spec|
   spec.name          = 'daru'
   spec.version       = Daru::VERSION
@@ -23,8 +22,10 @@
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency 'bundler'
-  spec.add_development_dependency 'rspec', '~> 3.0'
-  spec.add_development_dependency 'nmatrix', '~> 0.1.0.rc5'
+  spec.add_development_dependency 'rspec'
+  if RUBY_ENGINE != 'jruby'
+    spec.add_development_dependency 'nmatrix', '~> 0.1.0.rc5'
+  end
 end
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