From 34cb73bf7ed2bb38a28bde55c08915e45e15c372 Mon Sep 17 00:00:00 2001
From: Sean Fausett <sean@jellyfish.co.nz>
Date: Mon, 19 Oct 2026 14:35:47 +1300
Subject: [PATCH] Fix vendored dav1d stdatomic.h on recent MSVC (guard
 __has_include_next) (#166)

---
 3rdparty/dav1d/include/compat/msvc/stdatomic.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/3rdparty/dav1d/include/compat/msvc/stdatomic.h b/3rdparty/dav1d/include/compat/msvc/stdatomic.h
index 618f0ee..d637daa 100644
--- a/3rdparty/dav1d/include/compat/msvc/stdatomic.h
+++ b/3rdparty/dav1d/include/compat/msvc/stdatomic.h
@@ -32,6 +32,10 @@
 #pragma warning(push)
 #pragma warning(disable:4067)    /* newline for __has_include_next */
 
+#ifndef __has_include_next
+#define __has_include_next(x) 0
+#endif
+
 #if defined(__clang__) && __has_include_next(<stdatomic.h>)
    /* use the clang stdatomic.h with clang-cl*/
 #  include_next <stdatomic.h>