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VS: Fix compiler identification of nvcc with unsupported host compiler

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`nvcc` from CUDA < 12.4 does support the MSVC 14.40.17.10 toolset.
Users may specify `CUDAFLAGS=-allow-unsupported-compiler` to bypass the
check.  However, we do not use arbitrary user-specified flags during
compiler identification in the VS generator because escaping them for
the `AdditionalOptions` of the `.vcxproj` file requires non-trivial
logic that we currently only implement in the C++ generator code.
Instead, just always pass `-allow-unsupported-compiler` during CUDA
compiler identification in the VS generator.

Fixes: #26003
This commit is contained in:
Brad King
2024-05-23 13:08:04 -04:00
parent cbe26bdeda
commit 69f26d8156
1 changed files with 1 additions and 1 deletions
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2
Modules/CMakeDetermineCompilerId.cmake
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@@ -567,7 +567,7 @@ Id flags: ${testflags} ${CMAKE_${lang}_COMPILER_ID_FLAGS_ALWAYS}
if(CMAKE_VS_PLATFORM_NAME STREQUAL x64)
set(cuda_target "<TargetMachinePlatform>64</TargetMachinePlatform>")
endif()
set(id_ItemDefinitionGroup_entry "<CudaCompile>${cuda_target}<AdditionalOptions>%(AdditionalOptions)-v</AdditionalOptions></CudaCompile>")
set(id_ItemDefinitionGroup_entry "<CudaCompile>${cuda_target}<AdditionalOptions>%(AdditionalOptions)-v -allow-unsupported-compiler</AdditionalOptions></CudaCompile>")
set(id_PostBuildEvent_Command [[echo CMAKE_CUDA_COMPILER=$(CudaToolkitBinDir)\nvcc.exe]])
if(CMAKE_VS_PLATFORM_TOOLSET_CUDA_CUSTOM_DIR)
# check for legacy cuda custom toolkit folder structure