A common anti-pattern is to copy from the `CUDA_ARCHITECTURES` documentation.
If at any point the user tries to simplify by changin `set_property` to `set_target_properties` the code breaks.
To better train users, provide and example of how to set multiple
CUDA architectures with `set_target_properties`.
The ability to disable adding architectures completely for packaging purposes
and cases requiring passing the architectures flags explicitly has been
requested.
Support a false value for CUDA_ARCHITECTURES and CMAKE_CUDA_ARCHITECTURES
for this purpose.
Implements #20821.
Simplifies CUDA target architecture handling.
Required for Clang support as Clang doesn't automatically select a supported architecture.
We detect a supported architecture during compiler identification and set CMAKE_CUDA_ARCHITECTURES to it.
Introduces CMP0104 for backwards compatibility with manually setting code generation flags with NVCC.
Implements #17963.
Robert Maynard