File mate-eiciel-gtk-3.20.patch of Package mate-eiciel

--- a/src/eiciel_container.cpp
+++ b/src/eiciel_container.cpp
@@ -92,8 +92,10 @@ void EicielContainer::show_help()
 
 #ifdef USING_GNOME2
     gnome_help_display("mate-eiciel", NULL, &error);
-#else
+#elif GTK_CHECK_VERSION(3, 22, 0)
     gtk_show_uri_on_window(this->gobj(), "ghelp:mate-eiciel", GDK_CURRENT_TIME, &error);
+#else
+    gtk_show_uri(this->get_screen()->gobj(), "ghelp:mate-eiciel", GDK_CURRENT_TIME, &error);
 #endif
     if (error != NULL)
     {
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