From 97feea9d39ccaf298082cd537e85c311bf354010 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Wed, 26 Oct 2016 15:53:13 +0200
Subject: [PATCH] add a generic EIGEN_HAS_CXX11

---
 Eigen/src/Core/util/Macros.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h
index ce715716c..00aeb858d 100644
--- a/Eigen/src/Core/util/Macros.h
+++ b/Eigen/src/Core/util/Macros.h
@@ -356,6 +356,13 @@
 #define EIGEN_MAX_CPP_VER 99
 #endif
 
+#if EIGEN_MAX_CPP_VER>=11 && defined(__cplusplus) && (__cplusplus >= 201103L)
+#define EIGEN_HAS_CXX11 1
+#else
+#define EIGEN_HAS_CXX11 0
+#endif
+
+
 // Do we support r-value references?
 #ifndef EIGEN_HAS_RVALUE_REFERENCES
 #if EIGEN_MAX_CPP_VER>=11 && \