--- gdb-5.1.1/gdb/symfile.c	Sun Jul 15 20:57:06 2001
+++ gdb-5.1.1/gdb/symfile.c.orig	Thu Dec 19 09:58:20 2002
@@ -931,7 +931,7 @@ symbol_file_clear (int from_tty)
   if ((have_full_symbols () || have_partial_symbols ())
       && from_tty
       && !query ("Discard symbol table from `%s'? ",
-		 symfile_objfile->name))
+		 symfile_objfile ? symfile_objfile->name : "current image(s)"))
     error ("Not confirmed.");
     free_all_objfiles ();