[tz] suggestion: split "backward" into "backward" and "deprecated"

[Philip Paeps]

On 2020-05-05 11:00:18 (+0800), Andrew Gierth wrote:
> Philip Paeps <philip at trouble.is> wrote:
>> Since you mention cost though: installing the backward zones 
>> increased the footprint of /usr/share/zoneinfo from about 1.8M to 
>> about 3.3M.
>
> Really?
>
> Installing "backward" should create only links, and therefore have 
> negligible effect on the size, the only real penalty being the extra 
> directories and entries which should be only a few blocks at most.

It looks like we install the files rather than links.  Or I've botched 
something on the test machine I looked at (which is not unlikely).

>> Or they can trivially patch the build system not to install backward 
>> zones.
>
> Well, there used to be a build option for that in the base system, but 
> somebody just took it out...

Easy enough to put back if someone yells about it.

Philip

-- 
Philip Paeps
Senior Reality Engineer
Alternative Enterprises