extern "C" {
#endif
-#if __STDC_VERSION__ >= 199901L
-#define __restrict restrict
-#elif !defined(__GNUC__)
-#define __restrict
-#endif
+#include <features.h>
#define __NEED_socklen_t
#define __NEED_sa_family_t
int connect (int, const struct sockaddr *, socklen_t);
int listen (int, int);
int accept (int, struct sockaddr *__restrict, socklen_t *__restrict);
+int accept4(int, struct sockaddr *__restrict, socklen_t *__restrict, int);
int getsockname (int, struct sockaddr *__restrict, socklen_t *__restrict);
int getpeername (int, struct sockaddr *__restrict, socklen_t *__restrict);