From 76924858314bd7016915364eac7f8f68f8fcedcd Mon Sep 17 00:00:00 2001
From: Robert Maynard <robert.maynard@kitware.com>
Date: Thu, 13 Aug 2020 09:25:27 -0400
Subject: [PATCH] Make sure we use c++14 when using CUDA 11+

---
 CMake/VTKmDeviceAdapters.cmake | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMake/VTKmDeviceAdapters.cmake b/CMake/VTKmDeviceAdapters.cmake
index e7d6e0412..e2d6051e9 100644
--- a/CMake/VTKmDeviceAdapters.cmake
+++ b/CMake/VTKmDeviceAdapters.cmake
@@ -132,6 +132,12 @@ if(VTKm_ENABLE_CUDA)
       INTERFACE_COMPILE_OPTIONS $<$<COMPILE_LANGUAGE:CUDA>:--expt-relaxed-constexpr>
     )
 
+    if(CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA" AND
+      CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL 11.0)
+      # CUDA 11+ deprecated C++11 support
+      target_compile_features(vtkm_cuda INTERFACE cxx_std_14)
+    endif()
+
     # add the -gencode flags so that all cuda code
     # way compiled properly