From 0b2829c793a58540cddb3ff710cb81e114529d8b Mon Sep 17 00:00:00 2001
From: joaquintides <joaquin@tid.es>
Date: Tue, 21 Mar 2023 20:03:35 +0100
Subject: [PATCH] hardened TSan detection

---
 include/boost/unordered/detail/foa/core.hpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/boost/unordered/detail/foa/core.hpp b/include/boost/unordered/detail/foa/core.hpp
index a84e8592..5d2ad1ee 100644
--- a/include/boost/unordered/detail/foa/core.hpp
+++ b/include/boost/unordered/detail/foa/core.hpp
@@ -89,6 +89,11 @@
 #define BOOST_UNORDERED_HAS_FEATURE(x) 0
 #endif
 
+#if BOOST_UNORDERED_HAS_FEATURE(thread_sanitizer)|| \
+    defined(__SANITIZE_THREAD__)
+#define BOOST_UNORDERED_THREAD_SANITIZER
+#endif
+
 #define BOOST_UNORDERED_STATIC_ASSERT_HASH_PRED(Hash, Pred)                    \
   static_assert(boost::is_nothrow_swappable<Hash>::value,                      \
     "Template parameter Hash is required to be nothrow Swappable.");           \
@@ -273,7 +278,7 @@ private:
 
   inline __m128i load_si128()const
   {
-#if BOOST_UNORDERED_HAS_FEATURE(thread_sanitizer)
+#if defined(BOOST_UNORDERED_THREAD_SANITIZER)
     /* ThreadSanitizer complains on 1-byte atomic writes combined with
      * 16-byte atomic reads.
      */