pg.ddx.io pgsql-hackers@postgresql.org mailing list archive help / color / mirror / Atom feed From: Tom Lane <tgl@sss.pgh.pa.us>
To: Sergey Shinderuk <s.shinderuk@postgrespro.ru>
Cc: 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 11:13:15 -0500
Message-ID: <1283127.1610554395@sss.pgh.pa.us> (raw )
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Sergey Shinderuk <s.shinderuk@postgrespro.ru> writes:
> 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:
>>> note: 'pwritev' has been marked as being introduced in macOS 11.0 here,
>>> but the deployment target is macOS 10.15.0
>> 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.
The symptoms sound consistent with using bleeding-edge Xcode on a
Catalina machine ... please report exact OS and Xcode versions.
I have a different complaint, using Big Sur and Xcode 12.3:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpgport.a(pread.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpgport_shlib.a(pread_shlib.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpgport_srv.a(pread_srv.o) has no symbols
Looks like we need to be more careful about not including pread.c
in the build unless it actually has code to contribute.
regards, tom lane
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To: pgsql-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, s.shinderuk@postgrespro.ru, thomas.munro@gmail.com
Subject: Re: pg_preadv() and pg_pwritev()
In-Reply-To: <1283127.1610554395@sss.pgh.pa.us>
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