this should not matter since the reality is that either all the sysv
sem syscalls are individual syscalls, or all of them are multiplexed
on the SYS_ipc syscall (depending on arch). but best to be consistent
anyway.
int semtimedop(int id, struct sembuf *buf, size_t n, const struct timespec *ts)
{
-#ifdef SYS_semop
+#ifdef SYS_semtimedop
return syscall(SYS_semtimedop, id, buf, n, ts);
#else
return syscall(SYS_ipc, IPCOP_semtimedop, id, n, 0, buf, ts);