compile error on LD_PRELOAD version

[zcuder]

following instructions by https://cloud.tencent.com/developer/article/2278480 using branch dev
But got compile errors:
./ff_declare_syscalls.h:25:22: error: conflicting types for ‘ioctl’; have ‘int(int, long unsigned int, long unsigned int)’
25 | FF_SYSCALL_DECL(int, ioctl, (int, unsigned long, unsigned long));
| ^~~~~
ff_hook_syscall.c:37:28: note: in definition of macro ‘strong_alias’
37 | extern __typeof (name) aliasname attribute ((alias (#name)));
| ^~~~~~~~~
./ff_declare_syscalls.h:25:1: note: in expansion of macro ‘FF_SYSCALL_DECL’
25 | FF_SYSCALL_DECL(int, ioctl, (int, unsigned long, unsigned long));
| ^~~~~~~~~~~~~~~
In file included from /usr/include/sys/epoll.h:22,
from ff_hook_syscall.c:4:
/usr/include/sys/ioctl.h:42:12: note: previous declaration of ‘ioctl’ with type ‘int(int, long unsigned int, ...)’
42 | extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
| ^~~~~
make: *** [Makefile:129: ff_hook_syscall.o] Error 1
uname -r
5.15.178-120.180.amzn2.x86_64

It looks to me ioctl has always been variable paramerters. int ioctl (int __fd, unsigned long int __request, ...) https://man7.org/linux/man-pages/man2/ioctl.2.html
I am wondering how actually does this work, and any expert could help fix this?