On 11/30/2024 6:13 AM, Zhao Zhili wrote:
From: Zhao Zhili <zhiliz...@tencent.com>

MSVC messed up standard C features, again.
---
  libavutil/mem_internal.h | 4 ++++
  1 file changed, 4 insertions(+)

diff --git a/libavutil/mem_internal.h b/libavutil/mem_internal.h
index 249ec3a642..2eb4aef5b0 100644
--- a/libavutil/mem_internal.h
+++ b/libavutil/mem_internal.h
@@ -78,6 +78,10 @@
      #define DECLARE_ALIGNED_T(n,t,v)    alignas(FFMIN(n, 16)) t v
      #define DECLARE_ASM_ALIGNED(n,t,v)  alignas(FFMIN(n, 16)) t av_used v
      #define DECLARE_ASM_CONST(n,t,v)    alignas(FFMIN(n, 16)) static const t 
av_used v
+#elif defined(_MSC_VER)
+    #define DECLARE_ALIGNED_T(n,t,v)    __declspec(align(n)) t v
+    #define DECLARE_ASM_ALIGNED(n,t,v)  __declspec(align(n)) t v
+    #define DECLARE_ASM_CONST(n,t,v)    __declspec(align(n)) static const t v
  #else
      #define DECLARE_ALIGNED_T(n,t,v)    alignas(n) t v
      #define DECLARE_ASM_ALIGNED(n,t,v)  alignas(n) t av_used v

Ok.

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