From 292d61970a025f08daac53a20f6ac8fc7c00574e Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 19 Feb 2019 21:59:41 +0100
Subject: Fix C++17 compilation

---
 test/sparse.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'test/sparse.h')

diff --git a/test/sparse.h b/test/sparse.h
index 9912e1e24..7d753fdba 100644
--- a/test/sparse.h
+++ b/test/sparse.h
@@ -14,7 +14,12 @@
 
 #include "main.h"
 
-#if EIGEN_GNUC_AT_LEAST(4,0) && !defined __ICC && !defined(__clang__)
+#if EIGEN_HAS_CXX11
+
+#include <unordered_map>
+#define EIGEN_UNORDERED_MAP_SUPPORT
+
+#elif EIGEN_GNUC_AT_LEAST(4,0) && !defined __ICC && !defined(__clang__)
 
 #ifdef min
 #undef min
-- 
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