Allow that C++20 is passed to nvcc

masterleinad · Mar 10, 2023 · b000df5 · b000df5
1 parent 82bd4e6
commit b000df5
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/cmake/kokkos_test_cxx_std.cmake b/cmake/kokkos_test_cxx_std.cmake
@@ -29,7 +29,11 @@ FUNCTION(kokkos_set_cxx_standard_feature standard)
   ELSEIF(NOT KOKKOS_USE_CXX_EXTENSIONS AND ${STANDARD_NAME})
     MESSAGE(STATUS "Using ${${STANDARD_NAME}} for C++${standard} standard as feature")
     IF (KOKKOS_CXX_COMPILER_ID STREQUAL NVIDIA AND (KOKKOS_CXX_HOST_COMPILER_ID STREQUAL GNU OR KOKKOS_CXX_HOST_COMPILER_ID STREQUAL Clang))
-      SET(SUPPORTED_NVCC_FLAGS "-std=c++17")
+      IF(${KOKKOS_CXX_COMPILER_VERSION} VERSION_LESS 12.0.0)
+        SET(SUPPORTED_NVCC_FLAGS "-std=c++17")
+      ELSE()
+        SET(SUPPORTED_NVCC_FLAGS "-std=c++17" "-std=c++20")
+      ENDIF()
       IF (NOT ${${STANDARD_NAME}} IN_LIST SUPPORTED_NVCC_FLAGS)
         MESSAGE(FATAL_ERROR "CMake wants to use ${${STANDARD_NAME}} which is not supported by NVCC. Using a more recent host compiler or a more recent CMake version might help.")
       ENDIF()