CMake file properties per-target

问题

I previously asked: How to compile C++ as CUDA using CMake which was super helpful. But then realised I had a follow-on question.

What I want to do is compile one file twice, using different compilers. eg:

cmake_minimum_required(VERSION 3.9)
project(cuda_test LANGUAGES CUDA CXX)

add_executable(cuda_test_host test.cpp)     # build with GCC for host

set_source_files_properties(test.cpp PROPERTIES LANGUAGE CUDA)
add_executable(cuda_test_cuda test.cpp)     # build with NVCC for CUDA

But of course, the set_source_files_properties is not specific to a particular target, so both cuda_test_host and cuda_test_cuda end up being built by NVCC.

I've seen similar questions on StackOverflow suggesting making sub-directories with different CMake files in, but I'd like to avoid that if at all possible.

来源：https://stackoverflow.com/questions/58862280/cmake-file-properties-per-target