Fix CMake build to explicitly pick up ar and ranlib from toolchain. #6754
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CMake under various conditions will attempt to use `llvm-ar` and `llvm-ranlib` when it spots that we're building using `clang`, and while that works fine on Linux, it doesn't work so well on Darwin, leaving us with a link failure with a perplexing error message. The rest of the Swift build is resilient to this problem already, but the `bootstrap` script here doesn't pass the relevant options to CMake, so it's possible to end up with the build failing when trying to link `lib/libCYaml.a` after the build has mangled the static library with `llvm-ranlib`. rdar://113028933
al45tair
requested review from
abertelrud,
elsh,
neonichu and
tomerd
as code owners
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This is a cherry pick of #6721 |
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@swift-ci smoke test |
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Both linux and Windows CI failed with unrelated errors long before building SPM. |
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@swift-ci smoke test linux |
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@swift-ci smoke test windows |
tomerd
approved these changes
Jul 28, 2023
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cc @shahmishal |
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Something appears to be seriously wrong with the linux CI, it's repeatedly failing on startup itself. |
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@swift-ci smoke test linux |
1 similar comment
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@swift-ci smoke test linux |
neonichu
approved these changes
Jul 28, 2023
MaxDesiatov
approved these changes
Jul 28, 2023
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CMake under various conditions will attempt to use
llvm-arandllvm-ranlibwhen it spots that we're building usingclang, and while that works fine on Linux, it doesn't work so well on Darwin, leaving us with a link failure with a perplexing error message.The rest of the Swift build is resilient to this problem already, but the
bootstrapscript here doesn't pass the relevant options to CMake, so it's possible to end up with the build failing when trying to linklib/libCYaml.aafter the build has mangled the static library withllvm-ranlib.rdar://113028933