[tz] [YBA] TLD make using mawk causes malloc failure
Paul Eggert
eggert at cs.ucla.edu
Wed Jan 19 22:21:26 UTC 2022
On 1/19/22 02:12, Jonathan Ben Avraham via tz wrote:
> I did not see any warning about this in any of the NEW or README files,
> which is unfortunate
Yes it is. As far as I know you're the first person to mention this mawk
bug to us. Thanks for doing that.
Although the Makefile already warned that 'mawk' is glitchy, it
mentioned only UTF-8 issues whereas this is more serious. I strengthened
the wording by installing the attached proposed patch.
In the past we have worked around some mawk bugs by simple changes to
awk scripts to avoid the bugs[1][2]. I don't know how to do that easily
here, though, as Ian's report makes it sound like the mawk bug is
triggered by an awk array larger than 64k, and I expect it'd be a pain
to rework the script to not use arrays that might exceed that size. If
I'm wrong and there is a simple change to work around the mawk bug,
please let me know.
On older Debian it's a good idea anyway to run the command you mentioned
(update-alternatives --config awk'), as in my experience mawk 1.3.3 is
too buggy for many practical uses.
[1]:
https://github.com/eggert/tz/commit/464a055adfc9fc5282e8379563789943293113ac
[2]:
https://github.com/eggert/tz/commit/22875b5b069bb74b734dc7009e3dbadaff5a1904
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