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/* this tests if we need to define SGI_SEMUN_HACK
if we're using gcc on IRIX 6.5.x. */
#if defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/sem.h>
#ifndef HAVE_UNION_SEMUN
union semun {
int val;
struct semid_ds *buf;
unsigned short *array;
};
#endif
union semun_hack {
int val;
struct semid_ds *buf;
unsigned short *array;
char __dummy[5];
};
main() {
struct semid_ds sem_ds;
union semun_hack suh;
union semun su;
int sem_id, ret;
ret = 1;
sem_id = semget(0xdead6666,1,IPC_CREAT|IPC_EXCL|0777);
su.buf = &sem_ds;
suh.buf = &sem_ds;
if (sem_id != -1) {
if ((semctl(sem_id, 0, IPC_STAT, su) == -1) &&
(semctl(sem_id, 0, IPC_STAT, suh) != -1)) {
ret = 0;
}
}
semctl(sem_id, 0, IPC_RMID, 0);
return ret;
}
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