null sinks differ on different platforms

evheniyt · Aug 12, 2020 · 220aaa2 · 220aaa2
1 parent d250ee2
commit 220aaa2
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/cmake/modules/RootConfiguration.cmake b/cmake/modules/RootConfiguration.cmake
@@ -519,11 +519,17 @@ if(found_stdstringview)
   set(hasstdstringview define)
   if(cuda)
     if(CUDA_NVCC_EXECUTABLE)
+      if (WIN32)
+        set(PLATFORM_NULL_FILE "nul")
+      else()
+        set(PLATFORM_NULL_FILE "/dev/null")
+      endif()
       execute_process(
         COMMAND "echo"
           "-e" "#include <string_view>\nint main() { char arr[3] = {'B', 'a', 'r'}; std::string_view strv(arr, sizeof(arr)); return 0;}"
-        COMMAND "${CUDA_NVCC_EXECUTABLE}" "-std=c++${CMAKE_CUDA_STANDARD}" "-o" "/dev/null" "-x" "c++" "-"
+        COMMAND "${CUDA_NVCC_EXECUTABLE}" "-std=c++${CMAKE_CUDA_STANDARD}" "-o" "${PLATFORM_NULL_FILE}" "-x" "c++" "-"
         RESULT_VARIABLE nvcc_compiled_string_view)
+      unset(PLATFORM_NULL_FILE CACHE)
       if (nvcc_compiled_string_view EQUAL "0")
         set(cudahasstdstringview define)
       endif()