[AD] backamnesia and GUI

[Peter Wang <tjaden@xxxxxxxxxx>]

Hopefully pretty straightforward, but I didn't test yet.

Index: src/gui.c
===================================================================
RCS file: /cvsroot/alleg/allegro/src/gui.c,v
retrieving revision 1.40
diff -u -r1.40 gui.c
--- src/gui.c   2001/11/23 14:08:27     1.40
+++ src/gui.c   2001/11/28 04:28:05
@@ -720,8 +720,11 @@
 
       install_int(dclick_check, 20);
 
-      if (get_display_switch_mode() == SWITCH_AMNESIA)
-         set_display_switch_callback(SWITCH_IN, gui_switch_callback);
+      switch (get_display_switch_mode()) {
+        case SWITCH_AMNESIA:
+        case SWITCH_BACKAMNESIA:
+            set_display_switch_callback(SWITCH_IN, gui_switch_callback);
+      }
 
       /* gets menu auto-opening delay (in milliseconds) from config file */
       gui_menu_opening_delay = get_config_int(uconvert_ascii("system", tmp1), uconvert_ascii("menu_opening_delay", tmp2), 300);
@@ -838,8 +841,11 @@
    if (gui_install_time != _allegro_count) {
       install_int(dclick_check, 20);
 
-      if (get_display_switch_mode() == SWITCH_AMNESIA)
-        set_display_switch_callback(SWITCH_IN, gui_switch_callback);
+      switch (get_display_switch_mode()) {
+        case SWITCH_AMNESIA:
+        case SWITCH_BACKAMNESIA:
+           set_display_switch_callback(SWITCH_IN, gui_switch_callback);
+      }
 
       gui_install_time = _allegro_count;
    }