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cmake: improve CMAKE_CUDA_COMPILER guessing on unix #17773

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Mar 5, 2020
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cmake: improve CMAKE_CUDA_COMPILER guessing on unix #17773

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7 changes: 4 additions & 3 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -90,9 +90,10 @@ if(USE_CUDA)
cmake_minimum_required(VERSION 3.13.2) # CUDA 10 (Turing) detection available starting 3.13.2
include(CheckLanguage)
check_language(CUDA)
if (NOT CMAKE_CUDA_COMPILER_LOADED AND UNIX AND EXISTS "/usr/local/cuda/bin/nvcc")
set(CMAKE_CUDA_COMPILER "/usr/local/cuda/bin/nvcc")
message(WARNING "CMAKE_CUDA_COMPILER guessed: ${CMAKE_CUDA_COMPILER}")
if (NOT CMAKE_CUDA_COMPILER AND UNIX AND EXISTS "/usr/local/cuda/bin/nvcc")
set(ENV{CUDACXX} "/usr/local/cuda/bin/nvcc")
message(WARNING "CMAKE_CUDA_COMPILER guessed: " $ENV{CUDACXX} "\n"
"Please fix your cuda installation: https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#mandatory-post")
endif()
enable_language(CUDA)
set(CMAKE_CUDA_STANDARD 11)
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