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diff --git a/include/X11/Xlib.h b/include/X11/Xlib.hindex a26789b..e8aaae6 100644--- a/include/X11/Xlib.h+++ b/include/X11/Xlib.h@@ -36,6 +36,9 @@ in this Software without prior written authorization from The Open Group. #ifndef _XLIB_H_ #define _XLIB_H_ +/* whether users can set and get a pointer to private data */+#define XLIB_DISPLAY_DATA+ #define XlibSpecificationRelease 6  #ifdef USG@@ -4003,6 +4006,12 @@ extern int _Xwctomb(     wchar_t			/* wc */ ); +/* whether users can set and get a pointer to private data */+#ifdef XLIB_DISPLAY_DATA+extern void *XGetDisplayData (Display *dpy);+extern Bool XSetDisplayData (Display *dpy, const void *data);+#endif /* XLIB_DISPLAY_DATA */+ _XFUNCPROTOEND  #endif /* _XLIB_H_ */diff --git a/include/X11/Xlibint.h b/include/X11/Xlibint.hindex 8aab764..11c5522 100644--- a/include/X11/Xlibint.h+++ b/include/X11/Xlibint.h@@ -185,6 +185,9 @@ struct _XDisplay 	struct _XkbInfoRec *xkb_info; /* XKB info */ 	struct _XtransConnInfo *trans_conn; /* transport connection object */ 	struct _X11XCBPrivate *xcb; /* XCB glue private data */+#ifdef XLIB_DISPLAY_DATA+  	void *data;		/* user supplied data */+#endif /* XLIB_DISPLAY_DATA */ };  #define XAllocIDs(dpy,ids,n) (*(dpy)->idlist_alloc)(dpy,ids,n)diff --git a/src/OpenDis.c b/src/OpenDis.cindex 9c327d1..8587688 100644--- a/src/OpenDis.c+++ b/src/OpenDis.c@@ -84,6 +84,28 @@ static Bool _XBigReqHandler(Display *dpy, xReply *rep, char *buf, int len, 				XPointer data); #endif /* !USE_XCB */ +#ifdef XLIB_DISPLAY_DATA+void *+XGetDisplayData (Display *dpy)+{+  if (dpy != 0 && dpy->data != 0)+    return dpy->data;++  return NULL;+}++Bool+XSetDisplayData (Display *dpy, const void *data)+{+  if (dpy != 0 && data != 0)+    {+      dpy->data = data;+      return False;+    }+  return True;+}+#endif /* XLIB_DISPLAY_DATA */+ /*   * Connects to a server, creates a Display object and returns a pointer to  * the newly created Display back to the caller.