From d8b92543017053a2b2c5ca901ea310e20690b137 Mon Sep 17 00:00:00 2001
From: Alexey Ochapov <alexez@alexez.com>
Date: Wed, 3 Mar 2021 01:42:27 +0300
Subject: [PATCH] use simplified `void_t` for all compilers other than gcc 4.x
 (#2160)

---
 include/fmt/core.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/fmt/core.h b/include/fmt/core.h
index 94b31f71..7b2b2a43 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -1379,10 +1379,14 @@ template <typename T> struct formattable : std::false_type {};
 
 namespace detail {
 
+#if FMT_GCC_VERSION && FMT_GCC_VERSION < 500
 // A workaround for gcc 4.8 to make void_t work in a SFINAE context.
 template <typename... Ts> struct void_t_impl { using type = void; };
 template <typename... Ts>
 using void_t = typename detail::void_t_impl<Ts...>::type;
+#else
+template <typename...> using void_t = void;
+#endif
 
 template <typename It, typename T, typename Enable = void>
 struct is_output_iterator : std::false_type {};