From 1a2fee0d56fde7a3712b66496af02282184a5b1a Mon Sep 17 00:00:00 2001
From: Vadim Pisarevsky <no@email>
Date: Wed, 22 Sep 2010 20:45:01 +0000
Subject: [PATCH] include Eigen2/3 headers optionally, for greater flexibility

---
 modules/core/include/opencv2/core/eigen.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/core/include/opencv2/core/eigen.hpp b/modules/core/include/opencv2/core/eigen.hpp
index 91bcb20..31bbd43 100644
--- a/modules/core/include/opencv2/core/eigen.hpp
+++ b/modules/core/include/opencv2/core/eigen.hpp
@@ -46,7 +46,9 @@
 #ifdef __cplusplus
 
 #include "cxcore.h"
+#ifndef EIGEN_CORE_H
 #include <Eigen/Core>
+#endif
 
 namespace cv
 {
-- 
2.7.4