| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Alexander Korotkov <akorotkov(at)postgresql(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Detecting pointer misalignment (was Re: pgsql: Implementation of subscripting for jsonb) |
| Date: | 2021-02-12 22:35:46 |
| Message-ID: | 1610202.1613169346@sss.pgh.pa.us |
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I wrote:
> Looking around at other recent reports, it looks like we'll need to tweak
> the compiler version cutoffs a bit. I see for instance that spurfowl,
> with gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609, is whining:
> ...
> So maybe it'd better be __GNUC__ >= 6 not __GNUC__ >= 5. I think
> we can wait a little bit for more reports before messing with that,
> though.
Further reports show that gcc 6.x and 7.x also produce warnings,
so I moved the cutoff up to 8. Hopefully that's good enough.
We could write a configure test instead, but I'd just as soon not
expend configure cycles on this.
regards, tom lane
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