#include <endian.h>
struct semid_ds {
struct ipc_perm sem_perm;
time_t sem_otime;
time_t sem_ctime;
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned short __pad[3], sem_nsems;
#else
unsigned short sem_nsems, __pad[3];
#endif
unsigned long __unused[2];
};