From b305ab28c1350c580d3a65619f9287c0d384f5c4 Mon Sep 17 00:00:00 2001
From: Samuel Debionne <samuel.debionne@esrf.fr>
Date: Wed, 18 Sep 2019 08:55:59 +0200
Subject: [PATCH] Avoid infinite recursion in is_copy_constructible

---
 include/pybind11/cast.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/pybind11/cast.h b/include/pybind11/cast.h
index 67397c4ee7..eb6a42b471 100644
--- a/include/pybind11/cast.h
+++ b/include/pybind11/cast.h
@@ -11,6 +11,7 @@
 #pragma once
 
 #include "pytypes.h"
+#include "detail/common.h"
 #include "detail/typeid.h"
 #include "detail/descr.h"
 #include "detail/internals.h"
@@ -775,7 +776,9 @@ template <typename T, typename SFINAE = void> struct is_copy_constructible : std
 // so, copy constructability depends on whether the value_type is copy constructible.
 template <typename Container> struct is_copy_constructible<Container, enable_if_t<all_of<
         std::is_copy_constructible<Container>,
-        std::is_same<typename Container::value_type &, typename Container::reference>
+        std::is_same<typename Container::value_type &, typename Container::reference>,
+        // Avoid infinite recursion
+        negation<std::is_same<Container, typename Container::value_type>>
     >::value>> : is_copy_constructible<typename Container::value_type> {};
 
 #if !defined(PYBIND11_CPP17)