#ifndef _ERRNO_H #define _ERRNO_H #include #include #ifdef __USE_BSD extern int sys_nerr; extern char *sys_errlist[]; #endif #ifdef __USE_GNU extern int _sys_nerr; extern char *_sys_errlist[]; #endif extern int errno; __BEGIN_DECLS extern void perror __P ((__const char* __s)); extern char* strerror __P ((int __errno)); __END_DECLS #endif