Josh Berkus <> writes:
> Zdenec,
>> I have following idea:
>> 1) add guc varibale which enable usage of OS time zone files
>> 2) add extra parameters into ./configure script which enable OS TZ
>> support in the code and get path to OS TZ files.

> If we're adding it as a configure-time variable, there's no reason to have 
> a GUC.

I see zero reason to have either.  It would only make sense to do this
in the context of a platform-specific distribution such as an RPM, and
in that context the simplest solution is to let the RPM specfile make
the substitution (ie, after "make install" and before packaging,
rm -rf PG's timezone tree and insert a symlink).  Then it's on the RPM
packager's head whether it's the right thing to do or not.  A configure
switch strikes me as mostly a foot-gun, because the average user of
Postgres won't have any way to know whether the files are compatible.

                        regards, tom lane

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