[libcxx-commits] [libcxx] [libc++] Remove _LIBCPP_DISABLE_AVAILABILITY macro (PR #112952)

[Nikolas Klauser via libcxx-commits]

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@@ -85,6 +85,9 @@ Deprecations and Removals
 - The function ``__libcpp_verbose_abort()`` is now ``noexcept``, to match ``std::terminate()``. (The combination of
   ``noexcept`` and ``[[noreturn]]`` has special significance for function effects analysis.)
 
+- The ``_LIBCPP_DISABLE_AVAILABILITY`` macro that was used to force-disable availability markup has now been removed.
+  Whether availability markup is used by the library is now solely controlled at configuration-time.
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philnik777 wrote:

@ldionne I think they actually use the Apple SDK headers but ship their own libc++.so to support some programs on older platforms.

https://github.com/llvm/llvm-project/pull/112952