cyndyishida wrote:
> This approach becomes a problem when trying to run such tests on a
cross-compiling build of clang on a darwin platform. When no darwin
targets are included in the build, the tests will still run on a darwin
host and fail spuriously because of the missing target.
This doesn't happen for tests with `target=<arch>-apple<platform&version>`
right? It's not clear to me why the tests that explicitly pass an alternative
way to set the target triple (e.g. with env vars or with `mtargetos`) fail. It
would be good to diagnose that first.
> Can you confirm my understanding of -mtargetos?
This option should set the darwin target triple. It's the generic equivalent
of
```
-macosx_version_min <value>
-ios_version_min <value>
-watchos_version_min <value>
-tvos_version_min <value>
```
https://github.com/llvm/llvm-project/pull/130138
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