[clang] [clang] Fix name conflict with `sys/mac.h` on AIX (PR #88644)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Vlad Serebrennikov (Endilll)

<details>
<summary>Changes</summary>

Fixes clang-ppc64-aix bot failure after #<!-- -->88559 (0a6f6df5b0c3d0f2a42f013bf5cafb9b5020dcac) https://lab.llvm.org/buildbot/#/builders/214/builds/11887

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Full diff: https://github.com/llvm/llvm-project/pull/88644.diff


1 Files Affected:

- (modified) clang/include/clang/Basic/Cuda.h (+5) 


``````````diff
diff --git a/clang/include/clang/Basic/Cuda.h b/clang/include/clang/Basic/Cuda.h
index acc6bb6581d857..3908e10bc61061 100644
--- a/clang/include/clang/Basic/Cuda.h
+++ b/clang/include/clang/Basic/Cuda.h
@@ -50,6 +50,11 @@ const char *CudaVersionToString(CudaVersion V);
 // Input is "Major.Minor"
 CudaVersion CudaStringToVersion(const llvm::Twine &S);
 
+// We have a name conflict with sys/mac.h on AIX
+#ifdef _AIX
+#undef SM_32
+#endif
+
 enum class CudaArch {
   UNUSED,
   UNKNOWN,

``````````

</details>


https://github.com/llvm/llvm-project/pull/88644