[llvm] [libc-utils] disable target_compile_features (PR #121883)

[Louis Dionne via llvm-commits]

ldionne wrote:

Ok, so if you're on a Linux host and compiling for a Linux target, I think https://github.com/llvm/llvm-project/issues/114591 is entirely unrelated. You might be getting the CMake top-level CMake complaint, but likely for different reasons.

What I would try to do is go to your build directory and look at files like `<build>/CMakeFiles/CMakeConfigureLog.yaml`, there's usually information about why configuration checks have failed.

https://github.com/llvm/llvm-project/pull/121883