Hi all,
I'm trying out the CMake 3.9.0-rc3 support for CUDA with Visual Studio
generators*, and trying to port over an existing project that uses FindCUDA.
I'm sure I'm missing something obvious, but I can't see any mechanism to set
-Xcompiler flags.
To be more explicit, I need to set /bigobj on the host compiler for a .cu file.
If I use the CUDA Visual Studio Integration GUI, I can do this through CUDA
C/C++->Host->Additional Compiler Options, which populates the
CudaCompile\AdditionalCompilerOptions section of the .vcxproj. At compile time
any flags in this field are passed to nvcc by the -Xcompiler flag, which in
turn passes them through to the host compiler.
Unfortunately I cannot find any way to achieve this through CMake. I have tried
to add it to CMAKE_CUDA_FLAGS like so:
set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} -Xcompiler \"/bigobj\"")
But the generated .vcxproj does not have any trace of this line in it. (This
method does work for setting -Xcudafe parameters as expected, but it almost
seems like -Xcompiler flags are being deliberately stripped out.)
Is there some other mechanism for passing parameters into -Xcompiler?
Best wishes,
James Hancox
*To be precise, I'm using Visual Studio 12 2013 Win64 generator, CUDA 8.0.61
and CMake 3.9.0-rc3.
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