-.br
-.B #include <linux/unistd.h>
-.br
-.B #include <errno.h>
-.sp
-.B "_syscall3(mqd_t, mqdes, struct mq_attr *, newattr,
-.B " struct mq_attr *, oldattr);
- /* Or use \fBsyscall\fP(2); see \fBintro\fP(2) */
-.BI "mqd_t mq_getsetattr(mqd_t " mqdes ", struct mq_attr *" newattr ","