From ec032ac03b90dc6c58680a4dc858133e9a72fd1f Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Sat, 16 Feb 2019 09:44:05 +0100
Subject: [PATCH] Guard C++11-style default constructor. Also, this is only
 needed for MSVC

---
 Eigen/src/Core/CwiseBinaryOp.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Eigen/src/Core/CwiseBinaryOp.h b/Eigen/src/Core/CwiseBinaryOp.h
index a20cd4710..8b8de8382 100644
--- a/Eigen/src/Core/CwiseBinaryOp.h
+++ b/Eigen/src/Core/CwiseBinaryOp.h
@@ -100,9 +100,11 @@ class CwiseBinaryOp :
     typedef typename internal::remove_reference<LhsNested>::type _LhsNested;
     typedef typename internal::remove_reference<RhsNested>::type _RhsNested;
 
+#if EIGEN_COMP_MSVC && EIGEN_HAS_CXX11
     //Required for Visual Studio or the Copy constructor will probably not get inlined!
     EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
     CwiseBinaryOp(const CwiseBinaryOp<BinaryOp,LhsType,RhsType>&) = default;
+#endif
 
     EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
     CwiseBinaryOp(const Lhs& aLhs, const Rhs& aRhs, const BinaryOp& func = BinaryOp())