From https://github.com/elFarto/nvidia-vaapi-driver/pull/273
From: "Azamat H. Hackimov" <azamat.hackimov@gmail.com>
Date: Fri, 9 Feb 2024 20:54:17 +0300
Subject: [PATCH] Fix building with musl

qsort_r invocations uses `__compar_d_fn_t` typedef that defined only in
glibc. Added missing typedef to fix compilation on musl systems.

See: https://bugs.gentoo.org/924146

Signed-off-by: Azamat H. Hackimov <azamat.hackimov@gmail.com>
--- a/src/hevc.c
+++ b/src/hevc.c
@@ -3,6 +3,10 @@
 #include "vabackend.h"
 #include <stdlib.h>
 
+#if !defined(__GLIBC__)
+typedef int (*__compar_d_fn_t) (const void *, const void *, void *);
+#endif
+
 static const uint8_t ff_hevc_diag_scan4x4_x[16] = {
     0, 0, 1, 0,
     1, 2, 0, 1,
-- 
2.43.0