Zachary Anderson 774441e2c2 Roll clang with fix for ABI change (flutter/engine#44711) ...

In the change here b653a2823f, an intentional ABI breaking change was introduced to the clang runtime library for macOS and iOS. That change caused a symbol requiring dynamic linkage to be exposed that triggers iOS App Store checks for usage of private API.

This PR resolves that issue by rolling clang forward and introducing a definition of `_availability_version_check`. The declaration with weak linkage in the clang runtime library [here](b653a2823f/compiler-rt/lib/builtins/os_version_check.c (L89)) will then be resolved against the definition introduced in this PR. Since the declaration in the clang runtime library will now be resolved by static linking, the Flutter dylib will no longer require it to be dynamically linked, and will therefore not trigger the App Store check for using private API.

The definition of `_availability_version_check` is implemented using the `dlsym` strategy used by the old version of clang [here](f9ac557567/compiler-rt/lib/builtins/os_version_check.c (L97)).

Fixes https://github.com/flutter/flutter/issues/132130

2023-08-23 22:37:03 +00:00

..

src/flutter

Roll clang with fix for ABI change (flutter/engine#44711)

2023-08-23 22:37:03 +00:00