pomo.gemspec in pomo-2.0.2 vs pomo.gemspec in pomo-2.1.0

@@ -1,8 +1,9 @@
 # -*- encoding: utf-8 -*-
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'pomo/os'
 require 'pomo/version'
 
 Gem::Specification.new do |spec|
   spec.name              = 'pomo'
   spec.version           = Pomo::VERSION
@@ -20,11 +21,14 @@
   spec.require_paths     = ['lib']
   spec.rdoc_options      = ['--line-numbers', '--inline-source', '--title', 'Pomo', '--main', 'Readme.md']
 
   spec.add_dependency('commander', '~> 4.1')
   spec.add_dependency('octokit', '~> 1.19')
-  spec.add_dependency('terminal-notifier', '~> 1.4') if /darwin/ =~ RUBY_PLATFORM
-  spec.add_dependency('growl', '~> 1.0')             if /darwin/ =~ RUBY_PLATFORM
-  spec.add_dependency('libnotify', '~> 0.8')         if /linux/ =~ RUBY_PLATFORM
+  spec.add_dependency('terminal-notifier', '~> 1.4') if Pomo::OS.mac?
+  spec.add_dependency('growl', '~> 1.0')             if Pomo::OS.mac? || Pomo::OS.windows?
+  spec.add_dependency('libnotify', '~> 0.8')         if Pomo::OS.linux?
 
+  spec.add_development_dependency('aruba', '~> 0.5.1')
   spec.add_development_dependency('rspec', '~> 2.12')
+  spec.add_development_dependency('fakefs', '~> 0.4')
+  spec.add_development_dependency('yard')
 end