1#define _GNU_SOURCE
 2
 3#include <sys/socket.h>
 4#include <netdb.h>
 5
 6int gethostbyname_r(const char *name,
 7	struct hostent *h, char *buf, size_t buflen,
 8	struct hostent **res, int *err)
 9{
10	return gethostbyname2_r(name, AF_INET, h, buf, buflen, res, err);
11}