Gemfile in wisper-1.0.1 vs Gemfile in wisper-1.1.0

@@ -1,9 +1,10 @@
 source 'https://rubygems.org'
 
 gemspec
 
-gem 'guard'
-gem 'guard-rspec'
-gem 'rb-fsevent', '~>0.9.1'
-
-gem 'flay'
+group :development do
+  gem 'guard'
+  gem 'guard-rspec'
+  gem 'rb-fsevent', '~>0.9.1' if RUBY_PLATFORM =~ /darwin/
+  gem 'flay'
+end