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diff --git a/engines/glk/alan2/exe.h b/engines/glk/alan2/exe.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef GLK_ALAN2_EXE
+#define GLK_ALAN2_EXE
+
+/* Header file for instruction execution unit in Alan interpreter
+ */
+
+namespace Glk {
+namespace Alan2 {
+
+/* The event queue */
+extern EvtqElem eventq[];	/* Event queue */
+extern int etop;		/* Event queue top pointer */
+extern Boolean looking;		/* LOOKING? flag */
+extern int dscrstkp;		/* Point into describe stack */
+
+#ifdef _PROTOTYPES_
+extern void sys(Aword fpos, Aword len);
+extern Boolean confirm(MsgKind msgno);
+extern Aptr attribute(Aword item, Aword atr);
+extern void say(Aword item);
+extern void saynum(Aword num);
+extern void saystr(char *str);
+extern Aptr strattr(Aword id, Aword atr);
+extern void setstr(Aword id, Aword atr, Aword str);
+extern void getstr(Aword fpos, Aword len);
+extern void print(Aword fpos, Aword len);
+extern void look(void);
+extern void make(Aword id, Aword atr, Aword val);
+extern void set(Aword id, Aword atr, Aword val);
+extern void incr(Aword id, Aword atr, Aword step);
+extern void decr(Aword id, Aword atr, Aword step);
+extern void use(Aword act, Aword scr);
+extern void describe(Aword id);
+extern void list(Aword cnt);
+extern void locate(Aword id, Aword whr);
+extern void empty(Aword cnt, Aword whr);
+extern void score(Aword sc);
+extern void visits(Aword v);
+extern void schedule(Aword evt, Aword whr, Aword aft);
+extern void cancl(Aword evt);
+extern void quit(void);
+extern void restart(void);
+extern void save(void);
+extern void restore(void);
+extern void say(Aword id);
+extern void sayint(Aword val);
+extern Aword rnd(Aword from, Aword to);
+extern Abool btw(Aint val, Aint from, Aint to);
+extern Aword contains(Aptr string, Aptr substring);
+extern Abool streq(char a[], char b[]);
+extern Abool in(Aword obj, Aword cnt);
+extern Aword where(Aword item);
+extern Aint agrmax(Aword atr, Aword whr);
+extern Aint agrsum(Aword atr, Aword whr);
+extern Aint agrcount(Aword whr);
+extern Abool isHere(Aword item);
+extern Abool isNear(Aword item);
+
+#else
+extern void sys();
+extern Boolean confirm();
+extern Aptr attribute();
+extern void say();
+extern void saynum();
+extern void saystr();
+extern Aptr strattr();
+extern void setstr();
+extern void getstr();
+extern void print();
+extern void look();
+extern void make();
+extern void set();
+extern void incr();
+extern void decr();
+extern void use();
+extern void describe();
+extern void list();
+extern void locate();
+extern void empty();
+extern void score();
+extern void visits();
+extern void schedule();
+extern void cancl();
+extern void quit();
+extern void restart();
+extern void save();
+extern void restore();
+extern void say();
+extern void sayint();
+extern Aword rnd();
+extern Abool btw();
+extern Aword contains()
+extern Abool streq();
+extern Abool in();
+extern Aword where();
+extern Aword agrmax();
+extern Aword agrsum();
+extern Abool isHere();
+extern Abool isNear();
+#endif
+
+} // End of namespace Alan2
+} // End of namespace Glk
+
+#endif