From c36025cd7195c2e00a5f8267298dcc3a66ec00ea Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dimitry@andric.com>
Date: Wed, 7 Apr 2021 18:51:53 +0200
Subject: [PATCH] Avoid testing for libc++ internal macros after D99834

As D99834 was meant specifically for FreeBSD, which still uses the older
non-trivial std::pair copy constructors, test for `__FreeBSD__` instead
of relying on a macro which is an internal detail of libc++.

Noted by Louis Dionne.
---
 unittests/Support/TypeTraitsTest.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unittests/Support/TypeTraitsTest.cpp b/unittests/Support/TypeTraitsTest.cpp
index cd78f0900b8..bd213437001 100644
--- a/unittests/Support/TypeTraitsTest.cpp
+++ b/unittests/Support/TypeTraitsTest.cpp
@@ -110,7 +110,7 @@ TEST(Triviality, ADT) {
   TrivialityTester<llvm::SmallString<8>, false, false>();
 
   TrivialityTester<std::function<int()>, false, false>();
-#if !defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
+#if !defined(__FreeBSD__)
   TrivialityTester<std::pair<int, bool>, true, true>();
 #endif
   TrivialityTester<llvm::unique_function<int()>, false, false>();