asynchronous_notification, interactive_comments, no_symbolic_links,
function_trace_mode, error_trace_mode, pipefail_opt;
+/* -c, -s invocation options -- not really flags, but they show up in $- */
+extern int want_pending_command, read_from_stdin;
+
#if 0
extern int lexical_scoping;
#endif
#if defined (BANG_HISTORY)
extern int history_expansion;
+extern int histexp_flag;
#endif /* BANG_HISTORY */
#if defined (RESTRICTED_SHELL)