From 1a1377c53decf1264ca255910124caae82fd63a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kacper=20Michaj=C5=82ow?= <kasper93@gmail.com>
Date: Sat, 9 Aug 2025 05:38:20 +0200
Subject: [PATCH] avfilter/stack_internal: fix checkheaders test
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Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
---
 libavfilter/stack_internal.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavfilter/stack_internal.h b/libavfilter/stack_internal.h
index ace8886152..b4f9b92223 100644
--- a/libavfilter/stack_internal.h
+++ b/libavfilter/stack_internal.h
@@ -19,6 +19,10 @@
 #ifndef AVFILTER_STACK_INTERNAL_H
 #define AVFILTER_STACK_INTERNAL_H
 
+#ifdef HWContext
+
+#include "libavfilter/framesync.h"
+
 enum {
     STACK_H = 0,
     STACK_V = 1,
@@ -57,4 +61,6 @@ static int stack_init(AVFilterContext *avctx);
 static av_cold void stack_uninit(AVFilterContext *avctx);
 static int stack_activate(AVFilterContext *avctx);
 
+#endif
+
 #endif /* AVFILTER_STACK_INTERNAL_H */