From 1cd126d728d53e32c5fa59b43b5344999f87ef52 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 28 Sep 2017 14:40:10 +0300
Subject: [PATCH] Disable not type-erased consumers on GCC.

---
 Telegram/SourceFiles/rpl/consumer.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Telegram/SourceFiles/rpl/consumer.h b/Telegram/SourceFiles/rpl/consumer.h
index e34ef678be..b4791280ee 100644
--- a/Telegram/SourceFiles/rpl/consumer.h
+++ b/Telegram/SourceFiles/rpl/consumer.h
@@ -621,6 +621,9 @@ inline bool operator>=(
 	return !(a < b);
 }
 
+// GCC 7.2 can't handle not type-erased consumers.
+// It eats up 4GB RAM + 16GB swap on the unittest and dies.
+// Clang and Visual C++ both handle it without such problems.
 template <
 	typename Value,
 	typename Error,
@@ -631,7 +634,11 @@ template <
 		details::is_callable_v<OnNext, Value> &&
 		details::is_callable_v<OnError, Error> &&
 		details::is_callable_v<OnDone>>>
+#ifdef COMPILER_GCC
+inline consumer<Value, Error> make_consumer(
+#else // COMPILER_GCC
 inline auto make_consumer(
+#endif // COMPILER_GCC
 		OnNext &&next,
 		OnError &&error,
 		OnDone &&done) {