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-rw-r--r--test/sparse.h7
1 files changed, 6 insertions, 1 deletions
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