C ++代码在Linux上运行，但在Debian GNU / Hurd上运行

Question

我正在尝试编写一个在Micokernel和Monolithic系统上实现消息传递的应用程序。这段代码在Linux上运行得很好但在Denbian GNU / Hurd上失败

#include <sys/types.h>
#include <sys/msg.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define MSGSZ 128

/*
 * Declare the message structure.
 */

typedef struct msgbufer {
    long    mtype;
    char    mtext[MSGSZ];
} message_buf;

int main()
{
    int msqid;
    int msgflg = IPC_CREAT | 0666;
    key_t key;
    message_buf sbuf;
    size_t buf_length;

    /*
     * Get the message queue id for the
     * "name" 1234, which was created by
     * the server.
     */
    key = 1234;

    (void) fprintf(stderr, "\nmsgget: Calling msgget(%i,\
%#o)\n",
                   key, msgflg);

    if ((msqid = msgget(key, msgflg )) < 0) {
        perror("msgget");
        exit(1);
    }
    else
        (void) fprintf(stderr,"msgget: msgget succeeded: msqid = %d\n", msqid);


    /*
     * We'll send message type 1
     */

    sbuf.mtype = 1;


    (void) strcpy(sbuf.mtext, "Hello other process 2.");

    buf_length = strlen(sbuf.mtext) + 1 ;

    /*
     * Send a message.
     */


    int err = msgsnd(msqid, &sbuf, buf_length, IPC_NOWAIT);

    if (err < 0) {
        printf ("%d, %li, %s, %lu\n", msqid, sbuf.mtype, sbuf.mtext, buf_length);
        perror("msgsnd");
        exit(1);
    }

    else
        printf("Message: \"%s\" Sent\n", sbuf.mtext);


    exit(0);
}

这是我得到的错误：

send.cpp: (.text+0xf9): warning: msgsnd is not implemented and will always fail
send.cpp: (.text+0xf9): warning: msgget is not implemented and will always fail

有什么想法吗？