EX_NOSUB
{"EX_NOSUB", EX_NOSUB, EX_NOSUB},
if (ep->ex_flags & EX_NOSUB)
export->ex_flags |= EX_NOSUB;
export->ex_flags &= ~EX_NOSUB;
if ((*exi)->exi_export.ex_flags & EX_NOSUB && walk > 0)