**Describe the bug**

```
    /// We count all hour-length intervals, unrelated to offset changes.
    inline time_t toRelativeHourNum(time_t t) const
    {
        if (t >= 0 && offset_is_whole_number_of_hours_during_epoch)
            return t / 3600;

        /// Assume that if offset was fractional, then the fraction is the same as at the beginning of epoch.
        /// NOTE This assumption is false for "Pacific/Pitcairn" and "Pacific/Kiritimati" time zones.
        return (t + DATE_LUT_ADD + 86400 - offset_at_start_of_epoch) / 3600 - (DATE_LUT_ADD / 3600);
    }

    template <typename DateOrTime>
    inline time_t toRelativeHourNum(DateOrTime v) const
    {
        return toRelativeHourNum(lut[toLUTIndex(v)].date);
    }

```
the code snippet is in DateLUTImpl.h 

lut[toLUTIndex(v)].date is Int64.
below is type define in mac OS.
```
typedef long long               int64_t;
typedef __darwin_time_t         time_t;
typedef long                    __darwin_time_t; 
```

function overload will cause  infinite loop

**Does it reproduce on recent release?**

It's a portability issue


**How to reproduce**

execute SQL on clickhouse which build on macOS

select toRelativeHourNum(toDate('2020-10-01'));



{
        DateTimeComponents components = toDateTimeComponents(t);
        return
              components.time.second
            + components.time.minute * 100
            + components.time.hour * 10000
            + UInt64(components.date.day) * 1000000
            + UInt64(components.date.month) * 100000000
            + UInt64(components.date.year) * 10000000000;
    }
    inline time_t YYYYMMDDhhmmssToTime(UInt64 num) const
    {
        return makeDateTime(
            num / 10000000000,
            num / 100000000 % 100,
            num / 1000000 % 100,
            num / 10000 % 100,
            num / 100 % 100,
            num % 100);
    }
    
    
    inline NO_SANITIZE_UNDEFINED time_t addDays(time_t t, Int64 delta) const