jhuber6 wrote:

> Ok, but that still doesn't change the fact that the Clang driver will search 
> for a system-wide CUDA installation unless passed `--cuda-path`...

We also do this with the GCC toolchain, the issue is whether or not there's an 
error if it didn't find it. Doing `clang -v` will always print out if it found 
CUDA or HIP even on standard compilation AFAIK. Could you go ahead and add 
`-nogpulib -nogpuinc` to your tests. You can keep the `--cuda-path=` for now 
since I don't expect you to wait until my other fix lands. Thanks for bringing 
that to my attention, I knew there was something off if you were having 
problems.

https://github.com/llvm/llvm-project/pull/84008
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