[Openmp-commits] [openmp] [OpenMP] Fix: Add missing preprocessor guard for hwloc types on macOS (PR #156708)

[Richard Berger via Openmp-commits]

rbberger wrote:

@bursow :thinking: 

```console
$ grep --line-number "if KMP_USE_HWLOC$" openmp/runtime/src/kmp_alloc.cpp 
17:#if KMP_USE_HWLOC
1548:#if KMP_USE_HWLOC
1683:#if KMP_USE_HWLOC
1983:#if KMP_USE_HWLOC
2204:#if KMP_USE_HWLOC
2342:#if KMP_USE_HWLOC
2381:#if KMP_USE_HWLOC
```

https://github.com/llvm/llvm-project/pull/156708