NXdispatch.c: Use Callback instead of a modified function

nx-X11/programs/Xserver/hw/nxagent/Init.c

@@ -143,6 +143,11 @@ void OsVendorEndRedirectErrorFFunction();
 static void nxagentGrabServerCallback(CallbackListPtr *callbacks, void *data,
                                    void *args);
 
+#ifdef NXAGENT_CLIPBOARD
+extern void nxagentSetSelectionCallback(CallbackListPtr *callbacks, void *data,
+                                   void *args);
+#endif
+
 void ddxInitGlobals(void)
 {
   /*
@@ -411,6 +416,10 @@ FIXME: These variables, if not removed at all because have probably
   blackRoot = TRUE;
 
   nxagentInitKeystrokes(False);
+
+#ifdef NXAGENT_CLIPBOARD
+  AddCallback(&SelectionCallback, nxagentSetSelectionCallback, NULL);
+#endif
 }
 
 void

nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c

@@ -764,15 +764,6 @@ ProcSetSelectionOwner(register ClientPtr client)
 	    CallCallbacks(&SelectionCallback, &info);
 	}
 
-#ifdef NXAGENT_CLIPBOARD
-      if ((CurrentSelections[i].pWin != NULL) &&
-              (nxagentOption(Clipboard) != ClipboardNone) &&
-                  ((CurrentSelections[i].selection == XA_PRIMARY) ||
-                       (CurrentSelections[i].selection == MakeAtom("CLIPBOARD", 9, 0))))
-      {
-        nxagentSetSelectionOwner(&CurrentSelections[i]);
-      }
-#endif
 	return (client->noClientException);
     }
     else