From 0851643af5976c5408e1bd29c816066248f49ad4 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Mon, 9 Mar 2020 19:59:19 +0200
Subject: [PATCH] Change mp_invoke on Clang to use a struct, because deprecated
 alias templates never warn

---
 include/boost/mp11/utility.hpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/boost/mp11/utility.hpp b/include/boost/mp11/utility.hpp
index adbed4d..a8a32fb 100644
--- a/include/boost/mp11/utility.hpp
+++ b/include/boost/mp11/utility.hpp
@@ -222,8 +222,23 @@ template<class Q, class... T> using mp_invoke_q = typename Q::template fn<T...>;
 #endif
 
 // old name for mp_invoke_q retained for compatibility, but deprecated
+#if !defined(__clang__)
+
 template<class Q, class... T> using mp_invoke BOOST_MP11_DEPRECATED("please use mp_invoke_q") = mp_invoke_q<Q, T...>;
 
+#else
+
+// Clang doesn't warn on deprecated alias templates
+
+template<class Q, class... T> struct BOOST_MP11_DEPRECATED("please use mp_invoke_q") mp_invoke_
+{
+    using type = mp_invoke_q<Q, T...>;
+};
+
+template<class Q, class... T> using mp_invoke = typename mp_invoke_<Q, T...>::type;
+
+#endif
+
 // mp_not_fn<P>
 template<template<class...> class P> struct mp_not_fn
 {