[llvm-branch-commits] [libcxx] release/23.x: [PAC][libc++] Fix build with `ptrauth_calls` feature (#211033) (PR #211372)

[Tobias Hieta via llvm-branch-commits]

https://github.com/tru updated https://github.com/llvm/llvm-project/pull/211372

>From fe4580e97f23cabe4c1664888aad78875ef8b7f1 Mon Sep 17 00:00:00 2001
From: Daniil Kovalev <dkovalev at accesssoftek.com>
Date: Tue, 21 Jul 2026 22:12:00 +0300
Subject: [PATCH] [PAC][libc++] Fix build with `ptrauth_calls` feature
 (#211033)

After partial revert of #208330 in #209928, the libcxx build started
failing because of missing `<cstdint>` include required for `uintptr_t`
declaration used only by code behind `ptrauth_calls` feature check. See
https://lab.llvm.org/buildbot/#/builders/227/builds/3358

This patch adds the missing include.

(cherry picked from commit 12e1c7f70f34d59c023d05d0fe2c228a4e9aac11)
---
 libcxx/src/include/overridable_function.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libcxx/src/include/overridable_function.h b/libcxx/src/include/overridable_function.h
index e430ccda29f65..307405812f9af 100644
--- a/libcxx/src/include/overridable_function.h
+++ b/libcxx/src/include/overridable_function.h
@@ -114,6 +114,7 @@ _LIBCPP_END_NAMESPACE_STD
 
 #  else // __has_feature(ptrauth_calls)
 
+#    include <cstdint>
 #    include <ptrauth.h>
 
 #    if defined(_LIBCPP_OBJECT_FORMAT_MACHO)