prevalence of "right" time zones without timegm()?

[Tom Yu]

Dave Daugherty <dave.daugherty at centrify.com> writes:

> Zihao has the following update for the group. Does anyone know any differently for HPUX, AIX or SunOS?
>
>     I tested on the following platforms
> 1. Redhat linux 5.2 32bit       support right zoneinfo    have timegm
> 2. Ubuntu 10.04 32bit          support right zoneinfo    have timegm
> 3. CentOS 5.6 32bit            support right zoneinfo    have timegm
> 4. RHEL Server 5.2 64bit      support right zoneinfo    have timegm
> 5. SUSE Server 10 32bit      support right zoneinfo    have timegm
> 6. Fedora release 13 32bit   support right zoneinfo    have timegm
> 7. Debian 4.0 32bit             support right zoneinfo    have timegm
> 8. HPUX B.11.23 ia64          Not support right zoneinfo also don't have timegm
> 9. AIX5.1                          Not support right zoneinfo also don't have timegm
> 10. SunOS 5.10 sparc         Not support right zoneinfo also don't have timegm
> 11. SunOS x86_64             Not support right zoneinfo also don't have timegm
>  
>     Seems all linux platform support right zoneinfo(can be configured with leap seconds), and all have timegm. But all unix platform don't have timegm, and also I don't find way to set something like 'right timezone'.
>  
> Thanks
> zihao

Thank you very much for this information.  It does tend to confirm my
hypothesis.  May we include this table in our wiki or other
documentation?