Rakefile in avro-builder-0.10.0 vs Rakefile in avro-builder-0.11.0

@@ -1,6 +1,14 @@
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
+require 'appraisal/task'
 
-RSpec::Core::RakeTask.new(:spec)
+RSpec::Core::RakeTask.new(:default_spec)
 
-task default: :spec
+Appraisal::Task.new
+
+if !ENV['APPRAISAL_INITIALIZED']
+  task default: :appraisal
+  task spec: :appraisal
+else
+  task default: :default_spec
+end