T_OPTIONAL        210 scripts/kconfig/zconf.hash.c       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str18,	T_OPTIONAL,	TF_COMMAND},
T_OPTIONAL         60 scripts/kconfig/zconf.y %token <id>T_OPTIONAL
T_OPTIONAL        122 scripts/kconfig/zconf.y 	T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
T_OPTIONAL        293 scripts/kconfig/zconf.y choice_option: T_OPTIONAL T_EOL