1From 4e0c099e66f1e3216b2498eb9c87c12c9034d6a2 Mon Sep 17 00:00:00 2001
 2From: Michael Forney <mforney@mforney.org>
 3Date: Mon, 25 Oct 2021 17:08:29 -0700
 4Subject: [PATCH] libavutil: Use C11 _Alignas as fallback for DECLARE_ALIGNED
 5
 6---
 7 libavutil/mem_internal.h | 4 ++++
 8 1 file changed, 4 insertions(+)
 9
10diff --git a/libavutil/mem_internal.h b/libavutil/mem_internal.h
11index 20f9b3e3f2..a73dfd581b 100644
12--- a/libavutil/mem_internal.h
13+++ b/libavutil/mem_internal.h
14@@ -89,6 +89,10 @@
15     #define DECLARE_ALIGNED_T(n,t,v)    __declspec(align(n)) t v
16     #define DECLARE_ASM_ALIGNED(n,t,v)  __declspec(align(n)) t v
17     #define DECLARE_ASM_CONST(n,t,v)    __declspec(align(n)) static const t v
18+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
19+    #define DECLARE_ALIGNED(n,t,v)      _Alignas(n) t v
20+    #define DECLARE_ASM_ALIGNED(n,t,v)  _Alignas(n) t v
21+    #define DECLARE_ASM_CONST(n,t,v)    static const _Alignas(n) t v
22 #else
23     #define DECLARE_ALIGNED_T(n,t,v)    t v
24     #define DECLARE_ASM_ALIGNED(n,t,v)  t v
25-- 
262.44.0
27