+/* Make sure that minibuf_window doesn't refer to FRAME's minibuffer
+ window. Preferably use the selected frame's minibuffer window
+ instead. If the selected frame doesn't have one, get some other
+ frame's minibuffer window. SELECT non-zero means select the new
+ minibuffer window. */
+static void
+check_minibuf_window (Lisp_Object frame, int select)
+{
+ struct frame *f = decode_live_frame (frame);
+
+ if (WINDOWP (minibuf_window) && EQ (f->minibuffer_window, minibuf_window))
+ {
+ Lisp_Object frames, this, window = make_number (0);
+
+ if (!EQ (frame, selected_frame)
+ && FRAME_HAS_MINIBUF_P (XFRAME (selected_frame)))
+ window = FRAME_MINIBUF_WINDOW (XFRAME (selected_frame));
+ else
+ FOR_EACH_FRAME (frames, this)
+ {
+ if (!EQ (this, frame) && FRAME_HAS_MINIBUF_P (XFRAME (this)))
+ {
+ window = FRAME_MINIBUF_WINDOW (XFRAME (this));
+ break;
+ }
+ }
+
+ if (!WINDOWP (window))
+ emacs_abort ();
+ else
+ {
+ /* Use set_window_buffer instead of Fset_window_buffer (see
+ discussion of bug#11984, bug#12025, bug#12026). */
+ set_window_buffer (window, XWINDOW (minibuf_window)->contents, 0, 0);
+ minibuf_window = window;
+
+ /* SELECT non-zero usually means that FRAME's minibuffer
+ window was selected; select the new one. */
+ if (select)
+ Fselect_window (minibuf_window, Qnil);
+ }
+ }
+}
+
+