lorj.gemspec in lorj-0.2.0 vs lorj.gemspec in lorj-1.0.0

@@ -1,10 +1,15 @@
 # coding: utf-8
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'lorj/version'
 
+require 'rbconfig'
+ruby_conf = defined?(RbConfig) ? RbConfig::CONFIG : Config::CONFIG
+less_than_one_nine = ruby_conf['MAJOR'].to_i == 1 && ruby_conf['MINOR'].to_i < 9
+less_than_two = ruby_conf['MAJOR'].to_i < 2
+
 Gem::Specification.new do |spec|
   spec.name          = 'lorj'
   spec.version       = Lorj::VERSION
   spec.authors       = ['forj team']
   spec.email         = ['[e-mail]']
@@ -22,9 +27,10 @@
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.1.0'
+  spec.add_development_dependency 'byebug' unless less_than_two
   spec.rdoc_options << \
     '--title Lorj - The Process Controllers framework system' << \
     '--main README.md'
 
   #  spec.add_runtime_dependency 'thor', '~>0.16.0'