From 5f5a9f256cad866172c18939e31162ba038ac02e Mon Sep 17 00:00:00 2001
From: bruvzg <7645683+bruvzg@users.noreply.github.com>
Date: Sun, 24 Jul 2022 23:05:03 +0300
Subject: HarfBuzz: Update to version 5.0.1

---
 thirdparty/harfbuzz/src/hb-atomic.hh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'thirdparty/harfbuzz/src/hb-atomic.hh')

diff --git a/thirdparty/harfbuzz/src/hb-atomic.hh b/thirdparty/harfbuzz/src/hb-atomic.hh
index e640d1b586..d6dfb0f57a 100644
--- a/thirdparty/harfbuzz/src/hb-atomic.hh
+++ b/thirdparty/harfbuzz/src/hb-atomic.hh
@@ -111,6 +111,19 @@ _hb_atomic_ptr_impl_cmplexch (const void **P, const void *O_, const void *N)
 #endif
 
 
+#ifndef _hb_compiler_memory_r_barrier
+/* This we always use std::atomic for; and should never be disabled...
+ * except that MSVC gives me an internal compiler error on it. */
+#if !defined(_MSC_VER)
+#include <atomic>
+#define _hb_compiler_memory_r_barrier() std::atomic_signal_fence (std::memory_order_acquire)
+#else
+#define _hb_compiler_memory_r_barrier() do {} while (0)
+#endif
+#endif
+
+
+
 #ifndef _hb_memory_r_barrier
 #define _hb_memory_r_barrier()			_hb_memory_barrier ()
 #endif
-- 
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