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From: Sergey Shinderuk <s.shinderuk@postgrespro.ru>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: pg_preadv() and pg_pwritev()
Date: Wed, 13 Jan 2021 13:17:36 +0300
Message-ID: <448b3cb5-0ba0-6dc5-63c7-789e4eebc40b@postgrespro.ru> (raw)
In-Reply-To: <CA+hUKG+L573j4=XWv6S+r-687Yxn0FyXhtObH9_P-Nu_atL2pQ@mail.gmail.com>
References: <CA+hUKGJA+u-220VONeoREBXJ9P3S94Y7J+kqCnTYmahvZJwM=g@mail.gmail.com>
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	<20201220224040.evr5pduibvm6dze5@alap3.anarazel.de>
	<CA+hUKG+TCoareSYcAu05yaMh9eUck6Hd8FQZt5VEvotNs3YOMQ@mail.gmail.com>
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	<ed3b8e5d-0da8-6ebd-fd1c-e0ac80a4b204@postgrespro.ru>
	<CA+hUKG+L573j4=XWv6S+r-687Yxn0FyXhtObH9_P-Nu_atL2pQ@mail.gmail.com>

On 13.01.2021 12:56, Thomas Munro wrote:
> On Wed, Jan 13, 2021 at 10:40 PM Sergey Shinderuk
> <s.shinderuk@postgrespro.ru> wrote:
>> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/usr/include/sys/uio.h:104:9:
>> note: 'pwritev' has been marked as being introduced in macOS 11.0 here,
>> but the deployment target is macOS
>>         10.15.0
>> ssize_t pwritev(int, const struct iovec *, int, off_t)
>> __DARWIN_NOCANCEL(pwritev) __API_AVAILABLE(macos(11.0), ios(14.0),
>> watchos(7.0), tvos(14.0));
>>           ^
> 
> Hrm...  So why did "configure" think you have pwritev, then?  It seems
> like you must have been using different compilers or options at
> configure time and compile time, no?
> 

No, i've just rerun configure from clean checkout without any options. 
It does think that pwritev is available. I'll try to figure this out 
later and come back to you. Thanks.





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  To: pgsql-hackers@postgresql.org
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  Subject: Re: pg_preadv() and pg_pwritev()
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