Add support for building PyTorch/XLA using clang. #9059
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This is step 1 for supporting clang. We still need to fix some incompatibilities for the clang build to succeed.
With this change, one can add
--config=clangto thebazelcommand line to select clang (as opposed to gcc) as the C/C++ compiler when building PyTorch/XLA.We select
clang-17as that's the versioned installed in the PyTorch/XLA dev container.#9061