| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
| Cc: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org, Michael Meskes <meskes(at)postgresql(dot)org> |
| Subject: | Re: ecpg compile error on AIX |
| Date: | 2002-01-08 01:00:52 |
| Message-ID: | 19502.1010451652@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
> Shouldn't the set of warnings at least be the same on all
> platforms (at least those with the same integer size) or does it just warn
> if there would actually be a problem on that platform?
In fact, the GCC manual makes it pretty clear that the check is machine
dependent:
`-Wcast-align'
Warn whenever a pointer is cast such that the required alignment
of the target is increased. For example, warn if a `char *' is
cast to an `int *' on machines where integers can only be accessed
at two- or four-byte boundaries.
I suppose this means that we'd better run test compilations on Alphas
(or some other 8-byte-long environment) too, whenever we try to turn
on -Wcast-align.
regards, tom lane
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