patch 7.4.1890
Problem:    GUI: When channel data is received the cursor blinking is
            interrupted.  (Ramel Eshed)
Solution:   Don't update the cursor when it is blinking.
diff --git a/src/proto/gui_gtk_x11.pro b/src/proto/gui_gtk_x11.pro
index 7e94b58..3735f8d 100644
--- a/src/proto/gui_gtk_x11.pro
+++ b/src/proto/gui_gtk_x11.pro
@@ -1,6 +1,7 @@
 /* gui_gtk_x11.c */
 void gui_mch_prepare(int *argc, char **argv);
 void gui_mch_free_all(void);
+int gui_mch_is_blinking(void);
 void gui_mch_set_blinking(long waittime, long on, long off);
 void gui_mch_stop_blink(void);
 void gui_mch_start_blink(void);