From 628a17ae72fa65bf9f40ad7a3379d257a4e2711b Mon Sep 17 00:00:00 2001
From: Michele Caini <michele.caini@gmail.com>
Date: Fri, 3 Apr 2020 00:49:47 +0200
Subject: [PATCH] config: fixed ENTT_IS_EMPTY macro definition

---
 src/entt/config/config.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/entt/config/config.h b/src/entt/config/config.h
index 1a68737e3..8c95c4a56 100644
--- a/src/entt/config/config.h
+++ b/src/entt/config/config.h
@@ -46,8 +46,9 @@
 #   include <type_traits>
 #   define ENTT_IS_EMPTY(Type) std::is_empty_v<Type>
 #else
+#   include <type_traits>
 #   // sfinae-friendly definition
-#   define ENTT_IS_EMPTY(Type) decltype(Type, bool{}){}
+#   define ENTT_IS_EMPTY(Type) (false && std::is_empty_v<Type>)
 #endif