From 79eec66e3dc277ea6ebad8c0b33756eea6a7ab3b Mon Sep 17 00:00:00 2001
From: Sam Gross <colesbury@gmail.com>
Date: Wed, 10 Apr 2024 10:20:05 -0400
Subject: [PATCH] gh-112536: Define `_Py_THREAD_SANITIZER` on GCC when TSan is
 enabled (#117702)

The `__has_feature(thread_sanitizer)` is a Clang-ism. Although new
versions of GCC implement `__has_feature`, the `defined(__has_feature)`
check still fails on GCC so we don't use that code path.
---
 Include/pyport.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Include/pyport.h b/Include/pyport.h
index 9d7ef006180..2ba81a4be42 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -572,6 +572,9 @@ extern "C" {
 #  if defined(__SANITIZE_ADDRESS__)
 #    define _Py_ADDRESS_SANITIZER
 #  endif
+#  if defined(__SANITIZE_THREAD__)
+#    define _Py_THREAD_SANITIZER
+#  endif
 #endif