DAYS_PER_4_YEARS 90 ext/calendar/french.c #define DAYS_PER_4_YEARS 1461 DAYS_PER_4_YEARS 133 ext/calendar/gregor.c #define DAYS_PER_4_YEARS 1461 DAYS_PER_4_YEARS 152 ext/calendar/julian.c #define DAYS_PER_4_YEARS 1461