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diff --git a/larn/extern.h b/larn/extern.h
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+/*	$NetBSD: extern.h,v 1.16 2011/08/29 20:30:37 joerg Exp $	*/
+
+/*
+ * Copyright (c) 1997 Christos Zoulas.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* action.c */
+void act_remove_gems(int);
+void act_sit_throne(int);
+void act_drink_fountain(void);
+void act_wash_fountain(void);
+void act_desecrate_altar(void);
+void act_donation_pray(void);
+void act_just_pray(void);
+void act_ignore_altar(void);
+void act_open_chest(int, int);
+
+/* bill.c */
+__dead void mailbill(void);
+
+/* config.c */
+
+/* create.c */
+void makeplayer(void);
+void newcavelevel(int);
+void eat(int, int);
+int fillmonst(int);
+
+/* data.c */
+
+/* diag.c */
+void diag(void);
+int dcount(int);
+void diagdrawscreen(void);
+int savegame(char *);
+void restoregame(char *);
+
+/* display.c */
+void bottomline(void);
+void bottomhp(void);
+void bottomspell(void);
+void bottomdo(void);
+void bot_linex(void);
+void bottomgold(void);
+void draws(int, int, int, int);
+void drawscreen(void);
+void showcell(int, int);
+void show1cell(int, int);
+void showplayer(void);
+int moveplayer(int);
+void seemagic(int);
+
+/* fortune.c */
+const char *fortune(void);
+
+/* global.c */
+void raiselevel(void);
+void loselevel(void);
+void raiseexperience(long);
+void loseexperience(long);
+void losehp(int);
+void losemhp(int);
+void raisehp(int);
+void raisemhp(int);
+void raisemspells(int);
+void losemspells(int);
+int makemonst(int);
+void positionplayer(void);
+void recalc(void);
+void quit(void);
+void more(void);
+int take(int, int);
+int drop_object(int);
+void enchantarmor(void);
+void enchweapon(void);
+int pocketfull(void);
+int nearbymonst(void);
+int stealsomething(void);
+int emptyhanded(void);
+void creategem(void);
+void adjustcvalues(int, int);
+int getpassword(void);
+int getyn(void);
+int packweight(void);
+int rnd(int);
+int rund(int);
+
+/* help.c */
+void help(void);
+void welcome(void);
+
+/* io.c */
+void setupvt100(void);
+void clearvt100(void);
+int ttgetch(void);
+void scbr(void);
+void sncbr(void);
+void newgame(void);
+void lprintf(const char *, ...) __printflike(1, 2);
+void lprint(long);
+void lwrite(char *, int);
+long lgetc(void);
+long larn_lrint(void);
+void lrfill(char *, int);
+char *lgetw(void);
+char *lgetl(void);
+int lcreat(char *);
+int lopen(char *);
+int lappend(char *);
+void lrclose(void);
+void lwclose(void);
+void lprcat(const char *);
+void cursor(int, int);
+void cursors(void);
+void init_term(void);
+void cl_line(int, int);
+void cl_up(int, int);
+void cl_dn(int, int);
+void standout(const char *);
+void set_score_output(void);
+void lflush(void);
+char *tmcapcnv(char *, char *);
+void beep(void);
+
+/* main.c */
+int main(int, char **);
+void qshowstr(void);
+void show3(int);
+void parse2(void);
+unsigned long readnum(long);
+void szero(char *);
+
+/* monster.c */
+void createmonster(int);
+void createitem(int, int);
+void cast(void);
+void godirect(int, int, const char *, int, int);
+int vxy(int *, int *);
+void hitmonster(int, int);
+void hitplayer(int, int);
+void dropgold(int);
+void something(int);
+int newobject(int, int *);
+void checkloss(int);
+int annihilate(void);
+int newsphere(int, int, int, int);
+int rmsphere(int, int);
+
+/* moreobj.c */
+void oaltar(void);
+void othrone(int);
+void odeadthrone(void);
+void ochest(void);
+void ofountain(void);
+void fntchange(int);
+
+/* movem.c */
+void movemonst(void);
+
+/* nap.c */
+void nap(int);
+
+/* object.c */
+void lookforobject(void);
+void oteleport(int);
+void quaffpotion(int);
+void adjusttime(long);
+void read_scroll(int);
+void readbook(int);
+void iopts(void);
+void ignore(void);
+
+/* regen.c */
+void regen(void);
+
+/* savelev.c */
+void savelevel(void);
+void getlevel(void);
+
+/* scores.c */
+int makeboard(void);
+int hashewon(void);
+long paytaxes(long);
+void showscores(void);
+void showallscores(void);
+void died(int);
+void diedlog(void);
+int getplid(char *);
+
+/* signal.c */
+void sigsetup(void);
+
+/* store.c */
+void dndstore(void);
+void oschool(void);
+void obank(void);
+void obank2(void);
+void ointerest(void);
+void otradepost(void);
+void olrs(void);
+
+/* tok.c */
+int yylex(void);
+void flushall(void);
+void sethard(int);
+void readopts(void);