[CMake] how do you allow CMAKE_CUDA_COMPILER to be optional via project LANGUAGE?

[Quang Ha]

Hi all,

So this question is again about project(foo LANGUAGES CXX CUDA). Is it
possible to switch off CUDA if Cmake couldn't find CUDA compiler? I.e.
something along the line:

if (CUDA_FOUND)
  set_language_to_CUDA_and_CXX
else(CUDA_FOUND)
  set_language_to_CXX_only
endif(CUDA_FOUND)

The main reason is I don't want CMake to fail when CUDA compiler isn't
available. Rather, it should continue to compile the source files using CPP
compilers instead.

Thanks,
Quang
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://cmake.org/pipermail/cmake/attachments/20180828/9b54983c/attachment.html>