Add recordfile control to SYSCF.

Add sys/unix/sysconf, a sample sysconf file.
Move defines from topten.c to config.h so they can be seen globally.
Add persmax, pers_is_uid, entrymax, and pointsmin to struct sysopt, use
 in topten.c, populate in files.c
Warning cleanup in files.c.
BUGFIX: don't crash in unixmain.c if WIZARDS left unspecified.
hints/macosx10.5: don't hardcode "keni"; install sample sysconf; install
 sample ~/nethackrc
makedefs: add "system configuration" to compiled-with options list.
BUGFIX: if a game doesn't meet the criteria for making the record file it's
 shown to the user as having zero points because t1->points is set to zero
 to indicate that it doesn't get written back; display u.urexp instead.

include/config.h

@@ -155,6 +155,11 @@
  *		SUPPORT		(how to get local support)(no default)
  *		RECOVER		(how to recover a game at your site)(no default)
  *		SHELLERS	(who can use !, syntax as WIZARDS)
+ *		  for the record file (see topten.c):
+ *		PERSMAX		(max entries for one person)
+ *		ENTRYMAX	(max entries in the record file)
+ *		POINTSMIN	(min points to get an entry)
+ *		PERS_IS_UID	(0 or 1 - person is name or (numeric) userid)
  *
  *		The following options select how the config space is stored:
  *		SYSCF_FILE	in the named file
@@ -175,6 +180,27 @@
 #define NEWS "news"		/* the file containing the latest hack news */
 #define PANICLOG "paniclog"	/* log of panic and impossible events */
 
+#ifndef PERSMAX
+# define PERSMAX        3       /* entries per name/uid per char. allowed */
+#endif
+#ifndef POINTSMIN
+# define POINTSMIN      1       /* must be > 0 */
+#endif
+#ifndef ENTRYMAX
+# define ENTRYMAX       100     /* must be >= 10 */
+#endif
+#ifndef PERS_IS_UID
+# define PERS_IS_UID    1        /* delete for PERSMAX per name; now per uid */
+#endif
+#ifndef PERS_IS_UID
+# if !defined(MICRO) && !defined(MAC) && !defined(WIN32)
+#  define PERS_IS_UID   1         /* delete for PERSMAX per name; now per uid */
+# else
+#  define PERS_IS_UID   0
+# endif
+#endif
+
+
 /*
  *	If COMPRESS is defined, it should contain the full path name of your
  *	'compress' program.

include/sys.h

@@ -15,6 +15,11 @@ struct sysopt {
 	char *wizards;
 	char *shellers;	/* like wizards, for ! command (-DSHELL) */
 	int   maxplayers;
+		/* record file */
+	int persmax;
+	int pers_is_uid;
+	int entrymax;
+	int pointsmin;
 };
 E struct sysopt sysopt;