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re-enable automatic CC detection on Jetson

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* treat both CMAKE_C_COMPILER and c_compiler_realpath as candidate
This commit is contained in:
Tomoaki Teshima 2020-07-12 21:22:12 +09:00
parent 5487bca4f3
commit 269b810601
1 changed files with 12 additions and 1 deletions
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13
cmake/OpenCVDetectCUDA.cmake
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@ -106,7 +106,18 @@ if(CUDA_FOUND)
if(OPENCV_CUDA_DETECTION_NVCC_FLAGS MATCHES "-ccbin")
# already specified by user
elseif(CUDA_HOST_COMPILER AND EXISTS "${CUDA_HOST_COMPILER}")
LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${CUDA_HOST_COMPILER}")
get_filename_component(c_compiler_realpath "${CMAKE_C_COMPILER}" REALPATH)
# C compiler doesn't work with --run option, forcing C++ compiler instead
if(CUDA_HOST_COMPILER STREQUAL c_compiler_realpath OR CUDA_HOST_COMPILER STREQUAL CMAKE_C_COMPILER)
if(DEFINED CMAKE_CXX_COMPILER)
get_filename_component(cxx_compiler_realpath "${CMAKE_CXX_COMPILER}" REALPATH)
LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${cxx_compiler_realpath}")
else()
message(STATUS "CUDA: CMAKE_CXX_COMPILER is not available. You may need to specify CUDA_HOST_COMPILER.")
endif()
else()
LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${CUDA_HOST_COMPILER}")
endif()
elseif(WIN32 AND CMAKE_LINKER) # Workaround for VS cl.exe not being in the env. path
get_filename_component(host_compiler_bindir ${CMAKE_LINKER} DIRECTORY)
LIST(APPEND OPENCV_CUDA_DETECTION_NVCC_FLAGS -ccbin "${host_compiler_bindir}")