--- uae/include/os.h	2018/04/24 16:37:54	1.1.1.1
+++ uae/include/os.h	2018/04/24 16:38:28	1.1.1.2
@@ -6,13 +6,12 @@
   * (c) 1995 Bernd Schmidt
   */
 
-extern void read_joystick(UWORD *dir, bool *button);
+extern void read_joystick(UWORD *dir, int *button);
 extern void init_joystick(void);
 extern void close_joystick(void);
 
 extern CPTR audlc[4], audpt[4];
 extern UWORD audvol[4], audper[4], audlen[4];
 
-extern bool init_sound (void);
+extern int init_sound (void);
 extern void do_sound (void);
-extern void flush_sound (void);