0013-define-WINVER.patch

diff --color -Naur src_old/libavcodec/mf_utils.c src/libavcodec/mf_utils.c
--- src_old/libavcodec/mf_utils.c	2020-07-11 05:26:17.000000000 +0700
+++ src/libavcodec/mf_utils.c	2020-11-13 12:55:57.226976400 +0700
@@ -22,6 +22,11 @@
 #define _WIN32_WINNT 0x0602
 #endif
 
+#if !defined(WINVER) || WINVER < 0x0602
+#undef WINVER
+#define WINVER 0x0602
+#endif
+
 #include "mf_utils.h"
 #include "libavutil/pixdesc.h"