Fix potential segfaults at restore related to ctime(). In some games, restore() passes the result of ctime() to mvprintw() or some other variadic message-formatting function. If ctime() has not been declared properly, its return type is inferred to be int instead of char *. This does not cause a warning because the compiler does not know the correct type of variadic arguments. On platforms where ints and pointers are not the same size, this can, probably depending on alignment, result in a segfault that is not easy to trace. Including time.h fixes the problem. Some games manually declared ctime() and avoided the bug. These declarations have also been replaced with the include.

/*
 * machine dependicies
 *
 * %G% (Berkeley) %W%
 *
 * Rogue: Exploring the Dungeons of Doom
 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

/*
 * Variables for checking to make sure the system isn't too loaded
 * for people to play
 */
/* MAXLOAD and MAXUSERS are now set by configure. */

#define AUTHORUID        0
#if 0
#define	MAXUSERS	25	/* max number of users for this game */
#define	MAXLOAD		40	/* 10 * max 15 minute load average */
#endif
#define	CHECKTIME	15	/* number of minutes between load checks */