From 149bfe1c93d3cd2c6a586e7db55cbb00fb864300 Mon Sep 17 00:00:00 2001
From: jzmaddock <john@johnmaddock.co.uk>
Date: Wed, 4 Apr 2018 18:37:59 +0100
Subject: [PATCH] libcpp has no invoke_result.

---
 include/boost/config/stdlib/libcpp.hpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/boost/config/stdlib/libcpp.hpp b/include/boost/config/stdlib/libcpp.hpp
index 1e77dca3..a051dbb7 100644
--- a/include/boost/config/stdlib/libcpp.hpp
+++ b/include/boost/config/stdlib/libcpp.hpp
@@ -87,9 +87,6 @@
 #endif
 
 // C++17 features
-#if (_LIBCPP_VERSION < 3700) || (__cplusplus <= 201402L)
-#  define BOOST_NO_CXX17_STD_INVOKE
-#endif
 #if (_LIBCPP_VERSION < 4000) || (__cplusplus <= 201402L)
 #  define BOOST_NO_CXX17_STD_APPLY
 #endif
@@ -104,6 +101,7 @@
 #endif
 
 #define BOOST_NO_CXX17_ITERATOR_TRAITS
+#define BOOST_NO_CXX17_STD_INVOKE      // Invoke support is incomplete (no invoke_result)
 
 #if (_LIBCPP_VERSION <= 1101) && !defined(BOOST_NO_CXX11_THREAD_LOCAL)
 // This is a bit of a sledgehammer, because really it's just libc++abi that has no