From 049b1b176bbea66b21ecaa0619477ed01355b1bb Mon Sep 17 00:00:00 2001
From: Nicolas Williams <nico@twosigma.com>
Date: Mon, 5 Jan 2026 18:47:10 -0600
Subject: [PATCH] windows: #define _Atomic

---
 include/heim_threads.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/heim_threads.h b/include/heim_threads.h
index a80e801e6..bc01b943f 100644
--- a/include/heim_threads.h
+++ b/include/heim_threads.h
@@ -147,6 +147,8 @@ typedef unsigned long HEIM_PRIV_thread_key;
 
 #elif defined(_WIN32)
 
+#define _Atomic
+
 typedef struct heim_mutex {
     HANDLE	h;
 } heim_mutex_t;