1 files changed, 43 insertions, 11 deletions

diff --git a/src/xselect.c b/src/xselect.c
index 3fe109a5b85..cb00903c41e 100644
--- a/src/xselect.c
+++ b/src/xselect.c
@@ -398,12 +398,19 @@ x_own_selection (selection_name, selection_value)
      Lisp_Object selection_name, selection_value;
 {
   struct frame *sf = SELECTED_FRAME ();
-  Window selecting_window = FRAME_X_WINDOW (sf);
-  Display *display = FRAME_X_DISPLAY (sf);
+  Window selecting_window;
+  Display *display;
   Time time = last_event_timestamp;
   Atom selection_atom;
-  struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf);
+  struct x_display_info *dpyinfo;
+
+  if (! FRAME_X_P (sf))
+    return;
 
+  selecting_window = FRAME_X_WINDOW (sf);
+  display = FRAME_X_DISPLAY (sf);
+  dpyinfo = FRAME_X_DISPLAY_INFO (sf);
+  
   CHECK_SYMBOL (selection_name);
   selection_atom = symbol_to_x_atom (dpyinfo, display, selection_name);
 
@@ -671,7 +678,8 @@ some_frame_on_display (dpyinfo)
 
   FOR_EACH_FRAME (list, frame)
     {
-      if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo)
+      if (FRAME_X_P (XFRAME (frame))
+          && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo)
         return frame;
     }
 
@@ -1021,7 +1029,7 @@ x_handle_selection_clear (event)
      to see if this Emacs job now owns the selection
      through that display.  */
   for (t_dpyinfo = x_display_list; t_dpyinfo; t_dpyinfo = t_dpyinfo->next)
-    if (t_dpyinfo->kboard == dpyinfo->kboard)
+    if (t_dpyinfo->terminal->kboard == dpyinfo->terminal->kboard)
       {
         Window owner_window
           = XGetSelectionOwner (t_dpyinfo->display, selection);
@@ -1380,17 +1388,26 @@ x_get_foreign_selection (selection_symbol, target_type, time_stamp)
      Lisp_Object selection_symbol, target_type, time_stamp;
 {
   struct frame *sf = SELECTED_FRAME ();
-  Window requestor_window = FRAME_X_WINDOW (sf);
-  Display *display = FRAME_X_DISPLAY (sf);
-  struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (sf);
+  Window requestor_window;
+  Display *display;
+  struct x_display_info *dpyinfo;
   Time requestor_time = last_event_timestamp;
-  Atom target_property = dpyinfo->Xatom_EMACS_TMP;
-  Atom selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol);
+  Atom target_property;
+  Atom selection_atom;
   Atom type_atom;
   int secs, usecs;
   int count = SPECPDL_INDEX ();
   Lisp_Object frame;
 
+  if (! FRAME_X_P (sf))
+    return Qnil;
+
+  requestor_window = FRAME_X_WINDOW (sf);
+  display = FRAME_X_DISPLAY (sf);
+  dpyinfo = FRAME_X_DISPLAY_INFO (sf);
+  target_property = dpyinfo->Xatom_EMACS_TMP;
+  selection_atom = symbol_to_x_atom (dpyinfo, display, selection_symbol);
+
   if (CONSP (target_type))
     type_atom = symbol_to_x_atom (dpyinfo, display, XCAR (target_type));
   else
@@ -2206,6 +2223,9 @@ Disowning it means there is no such selection.  */)
   struct frame *sf = SELECTED_FRAME ();
 
   check_x ();
+  if (! FRAME_X_P (sf))
+    return Qnil;
+
   display = FRAME_X_DISPLAY (sf);
   dpyinfo = FRAME_X_DISPLAY_INFO (sf);
   CHECK_SYMBOL (selection);
@@ -2367,6 +2387,10 @@ DEFUN ("x-get-cut-buffer-internal", Fx_get_cut_buffer_internal,
   struct frame *sf = SELECTED_FRAME ();
 
   check_x ();
+
+  if (! FRAME_X_P (sf))
+    return Qnil;
+
   display = FRAME_X_DISPLAY (sf);
   dpyinfo = FRAME_X_DISPLAY_INFO (sf);
   window = RootWindow (display, 0); /* Cut buffers are on screen 0 */
@@ -2407,6 +2431,10 @@ DEFUN ("x-store-cut-buffer-internal", Fx_store_cut_buffer_internal,
   struct frame *sf = SELECTED_FRAME ();
 
   check_x ();
+
+  if (! FRAME_X_P (sf))
+    return Qnil;
+
   display = FRAME_X_DISPLAY (sf);
   window = RootWindow (display, 0); /* Cut buffers are on screen 0 */
 
@@ -2463,8 +2491,12 @@ Positive means shift the values forward, negative means backward.  */)
   Atom props[8];
   Display *display;
   struct frame *sf = SELECTED_FRAME ();
-
+  
   check_x ();
+
+  if (! FRAME_X_P (sf))
+    return Qnil;
+
   display = FRAME_X_DISPLAY (sf);
   window = RootWindow (display, 0); /* Cut buffers are on screen 0 */
   CHECK_NUMBER (n);