[libcxx-commits] [libcxx] [libc++] Remove unnecessary includes from <atomic> (PR #82880)

[Mark de Wever via libcxx-commits]

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@@ -460,6 +460,10 @@ _LIBCPP_HARDENING_MODE_DEBUG
 #    define __has_constexpr_builtin(x) 0
 #  endif
 
+#  ifndef __building_module
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mordante wrote:

Please add comments to this `#ifdef` the name is very unfortunate, this seems to be about clang modules and not C++20 modules.

https://github.com/llvm/llvm-project/pull/82880