this is an issue seen with musl based linux distros e.g. alpine [1]
musl is not going to change this since it breaks ABI/API interfaces
Newer compilers are stringent ( e.g. clang16 ) which can now detect
signature mismatches in function pointers too, existing code warned but
did not error with older clang
Fixes
gstv4l2object.c:544:23: error: incompatible function pointer types assigning to 'gint (*)(gint, ioctl_req_t, ...)' (aka 'int (*)(int, unsigned long, ...)') from 'int (int, int, ...)' [-Wincompatible-function-pointer-types]
v4l2object->ioctl = ioctl;
^ ~~~~~
[1] https://gitlab.alpinelinux.org/alpine/aports/-/issues/7580
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3950>