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macOS: Document the difference between Clang's -darwin and -macosx targets #132417

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Nov 1, 2024
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macOS: Document the difference between Clang's -darwin and -macosx targets #132417

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5 changes: 5 additions & 0 deletions src/doc/rustc/src/platform-support/apple-darwin.md
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Expand Up @@ -52,5 +52,10 @@ Cross-compilation of these targets are supported using Clang, but may require
Xcode or the macOS SDK (`MacOSX.sdk`) to be available to compile C code and
to link.

The Clang target is suffixed with `-macosx`. Clang's `-darwin` target refers
to Darwin platforms in general (macOS/iOS/tvOS/watchOS/visionOS), and requires
the `-mmacosx-version-min=...`, `-miphoneos-version-min=...` or similar flags
to disambiguate.

The path to the SDK can be passed to `rustc` using the common `SDKROOT`
environment variable.
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