1#ifndef	_ERRNO_H
 2#define _ERRNO_H
 3
 4#ifdef __cplusplus
 5extern "C" {
 6#endif
 7
 8#include <features.h>
 9
10#include <bits/errno.h>
11
12#ifdef __GNUC__
13__attribute__((const))
14#endif
15int *__errno_location(void);
16#define errno (*__errno_location())
17
18#ifdef _GNU_SOURCE
19extern char *program_invocation_short_name, *program_invocation_name;
20#endif
21
22#ifdef __cplusplus
23}
24#endif
25
26#endif
27