From 89bea8378ae632b0caa134293f713b927774ab50 Mon Sep 17 00:00:00 2001
From: ankurv <ankurv@microsoft.com>
Date: Sun, 3 Jan 2021 11:05:32 -0800
Subject: [PATCH] Patch

---
 src/osgEarth/Threading | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/osgEarth/Threading b/src/osgEarth/Threading
index 9093ca6..0fbd9ce 100644
--- a/src/osgEarth/Threading
+++ b/src/osgEarth/Threading
@@ -602,7 +602,11 @@ namespace osgEarth { namespace Threading
     template<typename Fn, typename... Args>
     constexpr auto cpp11invoke(Fn&& f, Args&&... args)
         noexcept(noexcept(std::forward<Fn>(f)(std::forward<Args>(args)...)))
+#if defined(__cpp_lib_is_invocable) && __cpp_lib_is_invocable >= 201703
+        -> typename std::invoke_result<Fn(Args...)>::type
+#else
         -> typename std::result_of<Fn(Args...)>::type
+#endif
     {
         return std::forward<Fn>(f)(std::forward<Args>(args)...);
     }
-- 
2.29.2.windows.3