Get rid of HADRIAN_SETTINGS#149
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This was referenced Feb 23, 2026
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Apple's LLVM toolchain uses `arm64` as the canonical architecture name for AArch64 on Apple platforms, while GNU config.sub normalises to `aarch64`. This mismatch causes `--target=aarch64-apple-darwin` to be passed to clang, which conflicts with toolchain wrappers (e.g. nix cc-wrapper) that expect `arm64-apple-darwin`. The result is thousands of test failures on aarch64-darwin because the cc-wrapper warning pollutes compiler output and the target flag interaction breaks compilation. Fix by adding normaliseLlvmTarget that rewrites `aarch64-apple-*` to `arm64-apple-*` for the LLVM target triple, matching Apple conventions and the existing llvm-targets file which already uses arm64-apple-darwin.
This was referenced Feb 27, 2026
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Closing this PR — the HADRIAN_SETTINGS removal has already been merged to The remaining NormaliseTriple fix (aarch64 → arm64 for Apple platforms) has been split out into #156. |
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