https://git.linuxtv.org/v4l-utils.git/commit/?id=5d7d99cd11acaaa3bdcb290f92012005dca58b1e

From 5d7d99cd11acaaa3bdcb290f92012005dca58b1e Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Fri, 31 Mar 2023 23:35:02 +0200
Subject: v4l2-tracer: wrap open64/mmap64 functions only if linux && __GLIBC__

Wrap open64/mmap64 functions only if linux && __GLIBC__, as done
in lib/libv4l1/v4l1comapt.c and lib/libv4l2/v4l2convert.c since
commit 'libv4l: Wrap LFS64 functions only if linux && __GLIBC__'
(403a4e2697a1ff96fe2fa16589039595f21cadf0), should fix musl libc
compile.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
--- a/utils/v4l2-tracer/libv4l2tracer.cpp
+++ b/utils/v4l2-tracer/libv4l2tracer.cpp
@@ -83,6 +83,7 @@ int open(const char *path, int oflag, ...)
 	return fd;
 }
 
+#if defined(linux) && defined(__GLIBC__)
 int open64(const char *path, int oflag, ...)
 {
 	errno = 0;
@@ -110,6 +111,7 @@ int open64(const char *path, int oflag, ...)
 
 	return fd;
 }
+#endif
 
 int close(int fd)
 {
@@ -156,6 +158,7 @@ void *mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off)
 	return buf_address_pointer;
 }
 
+#if defined(linux) && defined(__GLIBC__)
 void *mmap64(void *addr, size_t len, int prot, int flags, int fildes, off_t off)
 {
 	errno = 0;
@@ -170,6 +173,7 @@ void *mmap64(void *addr, size_t len, int prot, int flags, int fildes, off_t off)
 
 	return buf_address_pointer;
 }
+#endif
 
 int munmap(void *start, size_t length)
 {
-- 
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