Post-install hook

Podfile

post_install do |installer|
#     installer.pods_project.targets.each do |target| # 0.38+
  installer.project.targets.each do |target| # 0.37

     # https://github.com/AFNetworking/AFNetworking/issues/2321
     # https://github.com/CocoaPods/CocoaPods/blob/master/CHANGELOG.md#highlighted-enhancement-that-needs-testing
     # This can get removed in AFNetworking 2.6.0+
     # Make sure to have 'deduplicate_targets: false' in ' ~/.cocoapods/config.yaml'
     if target.name == "Pods-MYAPPNAME-AFNetworking"
       target.build_configurations.each do |config|
         config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= ['$(inherited)', 'AF_APP_EXTENSIONS=1']
       end
     end
 
   end
end