0b40e6e2cf
Improve `xcrun` error handling The compiler invokes `xcrun` on macOS when linking Apple targets, to find the Xcode SDK which contain all the necessary linker stubs. The error messages that `xcrun` outputs aren't always that great though, so this PR tries to improve that by providing extra context when an error occurs. Fixes https://github.com/rust-lang/rust/issues/56829. Fixes https://github.com/rust-lang/rust/issues/84534. Part of https://github.com/rust-lang/rust/issues/129432. See also the alternative https://github.com/rust-lang/rust/pull/131433. Tested on: - `x86_64-apple-darwin`, MacBook Pro running Mac OS X 10.12.6 - With no tooling installed - With Xcode 9.2 - With Xcode 9.2 Commandline Tools - `aarch64-apple-darwin`, MacBook M2 Pro running macOS 14.7.4 - With Xcode 13.4.1 - With Xcode 16.2 - Inside `nix-shell -p xcbuild` (nixpkgs' `xcrun` shim) - `aarch64-apple-darwin`, VM running macOS 15.3.1 - With no tooling installed - With Xcode 16.2 Commandline Tools ``@rustbot`` label O-apple r? compiler CC ``@BlackHoleFox`` ``@thomcc`` |
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