From 4fdf604ba667503ae582304cebdd3df426778a6b Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Wed, 7 Feb 2024 15:37:28 +0100
Subject: Vendor import of llvm-project branch release/18.x
 llvmorg-18.1.0-rc2-0-gc6c86965d967.

---
 libcxx/include/__algorithm/set_intersection.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libcxx/include/__algorithm/set_intersection.h')

diff --git a/libcxx/include/__algorithm/set_intersection.h b/libcxx/include/__algorithm/set_intersection.h
index f2603fe1365a..73d888d1b038 100644
--- a/libcxx/include/__algorithm/set_intersection.h
+++ b/libcxx/include/__algorithm/set_intersection.h
@@ -21,6 +21,9 @@
 #  pragma GCC system_header
 #endif
 
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InIter1, class _InIter2, class _OutIter>
@@ -95,4 +98,6 @@ inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator set_i
 
 _LIBCPP_END_NAMESPACE_STD
 
+_LIBCPP_POP_MACROS
+
 #endif // _LIBCPP___ALGORITHM_SET_INTERSECTION_H
-- 
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