--- gforth/engine/io.c	2000/09/23 15:47:08	1.13
+++ gforth/engine/io.c	2003/08/25 14:17:51	1.17
@@ -1,6 +1,6 @@
 /* direct key io driver
 
-  Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
+  Copyright (C) 1995,1996,1997,1998,1999,2002,2003 Free Software Foundation, Inc.
 
   This file is part of Gforth.
 
@@ -26,6 +26,7 @@
 */
 
 #include "config.h"
+#include "forth.h"
 #include <sys/time.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -51,7 +52,6 @@ typedef unsigned int uint32_t;
 #include <sys/filio.h>
 #endif
 #include <setjmp.h>
-#include "forth.h"
 #include "io.h"
 
 #ifndef MSDOS
@@ -626,7 +626,7 @@ long key_avail (FILE * stream)
 
   if(!terminal_prepped)  prep_terminal();
 
-#ifndef _WIN32
+#if defined(FIONREAD) && !defined(_WIN32)
   if(isatty (tty)) {
     result = ioctl (tty, FIONREAD, &chars_avail);
   }