diff --git a/include/xwindowp.h b/include/xwindowp.h
new file mode 100644
index 000000000..c2a90509f
--- /dev/null
+++ b/include/xwindowp.h
@@ -0,0 +1,72 @@
+/*	SCCS Id: @(#)xwindowp.h 3.3	92/03/07	*/
+/* Copyright (c) Dean Luick, 1992				  */
+/* NetHack may be freely redistributed.  See license for details. */
+
+#ifndef _xwindowp_h
+#define _xwindowp_h
+
+#include "xwindow.h"
+
+#ifndef SYSV
+#define PRESERVE_NO_SYSV	/* X11 include files may define SYSV */
+#endif
+
+/* include superclass private header file */
+#include <X11/CoreP.h>
+
+#ifdef PRESERVE_NO_SYSV
+# ifdef SYSV
+#  undef SYSV
+# endif
+# undef PRESERVE_NO_SYSV
+#endif
+
+/* define unique representation types not found in <X11/StringDefs.h> */
+
+#define XtRWindowResource "WindowResource"
+
+typedef struct {
+    int empty;
+} WindowClassPart;
+
+typedef struct _WindowClassRec {
+    CoreClassPart	core_class;
+    WindowClassPart	window_class;
+} WindowClassRec;
+
+extern WindowClassRec windowClassRec;
+
+typedef struct {
+    /* resources */
+    Dimension	   rows;
+    Dimension	   columns;
+    Pixel	   foreground;
+    Pixel	   black;
+    Pixel	   red;
+    Pixel	   green;
+    Pixel	   brown;
+    Pixel	   blue;
+    Pixel	   magenta;
+    Pixel	   cyan;
+    Pixel	   gray;
+    Pixel	   orange;
+    Pixel	   bright_green;
+    Pixel	   yellow;
+    Pixel	   bright_blue;
+    Pixel	   bright_magenta;
+    Pixel	   bright_cyan;
+    Pixel	   white;
+    XFontStruct    *font;
+    XtCallbackList expose_callback;
+    XtCallbackList input_callback;
+    XtCallbackList resize_callback;
+    /* private state */
+    /* (none) */
+} WindowPart;
+
+typedef struct _WindowRec {
+    CorePart	core;
+    WindowPart	window;
+} WindowRec;
+
+#endif /* _xwindowp_h */