gnome does not like ^C

This hack simply causes ^C to be ignored completely by the gnome interface.
Gnome really cannot handle interrupts, and the window port interface does
not currently provide a way for the gnome interface to just quit.  Allowing
the gnome interface to prompt would require a complete overhall to the the
way window ports work.

doc/fixes34.3

@@ -79,6 +79,7 @@ X11: avoid a possible crash when using window manger to close a player
 Gnome: add Quiver menu item, fix outdated Quit menu item
 Gnome: key values on unsigned char platform could fail to compare correctly
 Gnome: real extended command menu so all extended commands can be entered
+Gnome: ignore interrupts to avoid infinite loop in gnome library
 tty: avoid crash displaying quit inventory if inventory was already displayed
 
 

win/gnome/gnbind.c

@@ -106,9 +106,10 @@ void gnome_init_nhwindows(int* argc, char** argv)
 #   error HACKDIR is not defined!
 #endif
   
-    /* Force wizard mode on for debugging */
-    //wizard = TRUE;
-    
+    // gnome/gtk is not reentrant
+    set_option_mod_status("ignintr", DISP_IN_GAME);
+    flags.ignintr = TRUE;
+
     iflags.window_inited = TRUE;
 
     /* gnome-specific window creation */