From e2534e2bf6b836c1a3dfcef52e929d844415a770 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <bartosz.taudul@game-lion.com>
Date: Tue, 8 May 2018 12:26:47 +0200
Subject: [PATCH] Forward declare explicit and implicit producers.

---
 client/concurrentqueue.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/client/concurrentqueue.h b/client/concurrentqueue.h
index 074dc2f2..c31c7d03 100644
--- a/client/concurrentqueue.h
+++ b/client/concurrentqueue.h
@@ -688,6 +688,9 @@ template<typename T, typename Traits = ConcurrentQueueDefaultTraits>
 class ConcurrentQueue
 {
 public:
+    struct ExplicitProducer;
+    struct ImplicitProducer;
+
 	typedef ::moodycamel::ProducerToken producer_token_t;
 	typedef ::moodycamel::ConsumerToken consumer_token_t;