extern "C" {
#endif
-#if __STDC_VERSION__ >= 199901L
-#define __restrict restrict
-#elif !defined(__GNUC__)
-#define __restrict
-#endif
+#include <features.h>
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
int execvp(const char *, char *const []);
int execlp(const char *, const char *, ...);
int fexecve(int, char *const [], char *const []);
-void _exit(int);
+_Noreturn void _exit(int);
pid_t getpid(void);
pid_t getppid(void);
int getdtablesize(void);
int sethostname(const char *, size_t);
int getdomainname(char *, size_t);
+int setdomainname(const char *, size_t);
int setgroups(size_t, const gid_t []);
char *getpass(const char *);
int daemon(int, int);
void setusershell(void);
void endusershell(void);
char *getusershell(void);
+int acct(const char *);
#endif
#ifdef _GNU_SOURCE
int getresgid(gid_t *, gid_t *, gid_t *);
char *get_current_dir_name(void);
int pipe2(int [2], int);
+int dup3(int, int, int);
#endif
#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)