int sethostname(const char *, size_t);
int usleep(unsigned);
unsigned ualarm(unsigned, unsigned);
-int setgroups(int, const gid_t []);
+int setgroups(size_t, const gid_t []);
int setresuid(uid_t, uid_t, uid_t);
int setresgid(gid_t, gid_t, gid_t);
#endif