leezu commented on a change in pull request #17293: [Build] Add a reasonable 
default for CMAKE_CUDA_COMPILER in *nix
URL: https://github.com/apache/incubator-mxnet/pull/17293#discussion_r366856342
 
 

 ##########
 File path: CMakeLists.txt
 ##########
 @@ -84,6 +84,10 @@ message(STATUS "CMake version '${CMAKE_VERSION}' using 
generator '${CMAKE_GENERA
 project(mxnet C CXX)
 if(USE_CUDA)
   cmake_minimum_required(VERSION 3.13.2)  # CUDA 10 (Turing) detection 
available starting 3.13.2
+  if (NOT MSVC AND (NOT DEFINED CMAKE_CUDA_COMPILER OR 
"${CMAKE_CUDA_COMPILER}" STREQUAL "CMAKE_CUDA_COMPILER-NOTFOUND"))
 
 Review comment:
   Need to check for `CUDACXX`

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