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From: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
To: Thomas Munro <thomas.munro@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Peter Geoghegan <pg@bowt.ie>
Cc: Andres Freund <andres@anarazel.de>
Cc: Noah Misch <noah@leadboat.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: AIX support - alignment issues
Date: Wed, 6 Jul 2022 15:02:15 +0200
Message-ID: <7890936c-392b-91be-edac-b6d5a500e4b9@enterprisedb.com> (raw)
In-Reply-To: <CA+hUKGJzapRb3UwJF-bLsv=-p6WLk4_hs6WxR8y9LFTSdJBOCw@mail.gmail.com>
References: <20220702183354.a6uhja35wta7agew@alap3.anarazel.de>
	<CAH2-WzndKXQQGh-7sCOTKL_87Kt918r0F2ztTAraeBCAC8v3OQ@mail.gmail.com>
	<968410.1656789743@sss.pgh.pa.us>
	<CAH2-WzmnoGPN--Z7MfTqv2TTVLJF0Y0tzZbGUS-NAwJ0wv15hw@mail.gmail.com>
	<977853.1656794075@sss.pgh.pa.us>
	<CA+hUKGLo8XVq4c=QpXFO5i3t3u5q6Fope=QgRtE-S3RncP+aUg@mail.gmail.com>
	<1415825.1656893299@sss.pgh.pa.us>
	<CA+hUKGJg5kg7LSeKZm1cDFQCTLBWUF1wvuM4eebJBq9DwYfZYw@mail.gmail.com>
	<1827177.1656996797@sss.pgh.pa.us>
	<CA+hUKGJzapRb3UwJF-bLsv=-p6WLk4_hs6WxR8y9LFTSdJBOCw@mail.gmail.com>

On 06.07.22 04:21, Thomas Munro wrote:
>   	/*
>   	 * Do not try to collapse these into one "w+" mode file. Doesn't work on
> -	 * some platforms (eg, HPUX 10.20).
> +	 * some platforms.
>   	 */
>   	termin = fopen("/dev/tty", "r");
>   	termout = fopen("/dev/tty", "w");

I don't know how /dev/tty behaves in detail under stdio.  I think 
removing this part of the comment might leave the impression that 
attempting to use "w+" will never work, whereas the existing comment 
appears to indicate that it was only very old platforms that had the 
issue.  If we don't have an immediate answer to that, I'd leave the 
comment as is.






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