Another cleanup run.

src/disk/hdc_xtide.c

@@ -21,7 +21,7 @@
  *		already on their way out, the newer IDE standard based on the
  *		PC/AT controller and 16b design became the IDE we now know.
  *
- * Version:	@(#)hdc_xtide.c	1.0.8	2017/10/09
+ * Version:	@(#)hdc_xtide.c	1.0.9	2017/10/16
  *
  * Authors:	Sarah Walker, <http://pcem-emulator.co.uk/>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -36,6 +36,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <wchar.h>
+#include "../86box.h"
 #include "../ibm.h"
 #include "../io.h"
 #include "../mem.h"