iOS9向けバイナリの実行時に「This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes. This will cause an exception in a future release と表示された場合の対処

iOS9向けバイナリの実行時に、下記のメッセージがコンソールログに出力された場合の対処法。

This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes. This will cause an exception in a future release

dispatch_async(dispatch_get_main_queue(), ^{
　// 処理
});

参考記事：
http://stackoverflow.com/questions/28302019/getting-a-this-application-is-modifying-the-autolayout-engine-error