/*
** This happens because as you can read in the _syscall manpage :
**
** NOTES
** Starting around kernel 2.6.18, the _syscall macros were removed from header
** files supplied to user space.  Use syscall(2) instead.  (Some architectures,
** notably ia64, never provided the _syscall macros; on those architectures,
** syscall(2) was always required.)
**
** so you got this compilation error :
** a.c:7: error: expected declaration specifiers or ‘...’ before ‘epoll_create’
** a.c:7: error: expected declaration specifiers or ‘...’ before ‘size’
** a.c:7: warning: data definition has no type or storage class
**
** It means after epoll_create and size are not valids type's specifier.
** This is because _syscall1 is not defined and thus it take it for a 
** prototype, so epoll_create would be some data type.
**
** The solution is to include the little _syscall.h that define it.
** man epoll_create do it for me, anyway.
*/

#include <linux/unistd.h>
#include <errno.h>
#include "_syscall.h"

#define __NR_epoll_create       254

_syscall1(int, epoll_create, int, size)