ABMON_1
for (month = ABMON_1; month <= ABMON_12; month++)
short_months[month - ABMON_1] = nl_langinfo(month);
_dtconv.abbrev_month_names[0] = strdup(nl_langinfo(ABMON_1));
case ABMON_1: case ABMON_2: case ABMON_3: case ABMON_4:
ret = (char *)ltime->mon[_REL(ABMON_1)];
{ ABMON_1, "Jan" },
{ ABMON_1, "янв." },
{ ABMON_1, "Jan" },
{ ABMON_1, "Jan" },