Undefined arrays

[1BADragon]

The arrays associated with the macros:

#define days_of_week(n) (&_days_of_week[_days_of_week_idx[n]])
#define months_of_year(n) (&_months_of_year[_months_of_year_idx[n]])

appear to be undefined. days_of_week and month_of_year appear to be defined in utz.c, although the name is different. The *_idx arrays don't exist at all.