From 8a89ba927564d9e6209495da7729d8e93f381dec Mon Sep 17 00:00:00 2001
From: Hauke Heibel <hauke.heibel@gmail.com>
Date: Sat, 10 Aug 2013 19:11:03 +0200
Subject: [PATCH] Added alternative C++11 detection.

---
 Eigen/src/Core/util/Macros.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h
index 2a1ef296e..7e5289cdd 100644
--- a/Eigen/src/Core/util/Macros.h
+++ b/Eigen/src/Core/util/Macros.h
@@ -104,8 +104,9 @@
 
 // Do we support r-value references?
 #if (__has_feature(cxx_rvalue_references) || \
+    (defined(__cplusplus) && __cplusplus >= 201103L) || \
      defined(__GXX_EXPERIMENTAL_CXX0X__) || \
-     (defined(_MSC_VER) && _MSC_VER >= 1600))
+    (defined(_MSC_VER) && _MSC_VER >= 1600))
   #define EIGEN_HAVE_RVALUE_REFERENCES
 #endif