[PATCH] D150397: [darwin] Declare _availability_version_check as weak_import instead of looking it up at runtime using dlsym

[Petr Hosek via Phabricator via llvm-commits]

phosek added a comment.

In D150397#4574476 <https://reviews.llvm.org/D150397#4574476>, @ahatanak wrote:

> We are currently investigating this issue.

Thanks for taking a look!

> Are you (Flutter) using your custom toolchain based on ToT instead of the current shipping Xcode toolchain to build the app?

Yes, we use our Clang toolchain that tracks tip-of-tree.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D150397/new/

https://reviews.llvm.org/D150397