rem: rmdir (dpath) char *dpath;
add: rmdir (char const *dpath)
context: rmdir (dpath)     char *dpath;{  pid_t cpid;  int status;  struct stat statbuf;  if (stat (dpath, &statbuf) != 0)    return -1;			/* errno already set */  if (!S_ISDIR (statbuf.st_mode))    {      errno = ENOTDIR;      return -1;    }  cpid = fork ();  switch (cpid)    {    case -1:			/* cannot fork */      return -1;		/* errno already set */    case 0:			/* child process */      execl ("/bin/rmdir", "rmdir", dpath, (char *) 0);      _exit (1);    default:			/* parent process */      /* Wait for kid to finish.  */      while (wait (&status) != cpid)	/* Do nothing.  */ ;      if (status)	{	  /* /bin/rmdir failed.  */	  errno = EIO;	  return -1;	}      return 0;    }}