Re: zic: fix PostgreSQL build failure on filesystems without hard link support

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Vladlen Popolitov <v(dot)popolitov(at)postgrespro(dot)ru>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: zic: fix PostgreSQL build failure on filesystems without hard link support
Date: 2026-07-30 13:50:54
Message-ID: 1035432.1785419454@sss.pgh.pa.us
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Vladlen Popolitov <v(dot)popolitov(at)postgrespro(dot)ru> writes:
> PostgreSQL fails to build on filesystems that do not support hard links
> (e.g., exFAT, FAT32, some network filesystems). The build process stops
> with the following error during timezone data generation:
> Can't link <target> to <linkname>: Invalid argument

I've bounced this to tzdb upstream to see just how they want to fix it
[1].

regards, tom lane

[1] https://lists.iana.org/hyperkitty/list/tz(at)iana(dot)org/message/O5Q2I3GLZIF6GEFZ3MDWRZKG4ENPJVFQ/

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