From 686e0749a56312e6b22498e06ad92b26b29fa702 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Fri, 13 Apr 2018 19:10:23 +0200
Subject: [PATCH] Recent Adolc versions require C++11

---
 unsupported/test/CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/unsupported/test/CMakeLists.txt b/unsupported/test/CMakeLists.txt
index b5fa1c845..80cccd828 100644
--- a/unsupported/test/CMakeLists.txt
+++ b/unsupported/test/CMakeLists.txt
@@ -30,11 +30,16 @@ else(GOOGLEHASH_FOUND)
   ei_add_property(EIGEN_MISSING_BACKENDS  "GoogleHash, ")
 endif(GOOGLEHASH_FOUND)
 
+
 find_package(Adolc)
 if(ADOLC_FOUND)
   include_directories(${ADOLC_INCLUDES})
   ei_add_property(EIGEN_TESTED_BACKENDS "Adolc, ")
-  ei_add_test(forward_adolc "" ${ADOLC_LIBRARIES})
+  if(EIGEN_TEST_CXX11)
+    ei_add_test(forward_adolc "" ${ADOLC_LIBRARIES})
+  else()
+    message(STATUS "Adolc found, but tests require C++11 mode")
+  endif()
 else(ADOLC_FOUND)
   ei_add_property(EIGEN_MISSING_BACKENDS "Adolc, ")
 endif(ADOLC_FOUND)