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From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: Naohiro Tamura <naohirot@fujitsu.com>,
	libc-alpha@sourceware.org, Mike Frysinger <vapier@gentoo.org>
Subject: Re: [PATCH] Replaced obsoleted AC_HELP_STRING to AS_HELP_STRING
Date: Mon, 15 Feb 2021 10:39:47 -0300	[thread overview]
Message-ID: <060cf851-b2c9-a608-7dbb-7f7a4636ea6a@linaro.org> (raw)
In-Reply-To: <YCp3JgZe8zc4dnPT@vapier>



On 15/02/2021 10:29, Mike Frysinger wrote:
> On 15 Feb 2021 09:59, Adhemerval Zanella via Libc-alpha wrote:
>> On 15/02/2021 09:31, Naohiro Tamura wrote:
>>> This patch replaced obsoleted AC_HELP_STRING to AS_HELP_STRING.
>>> As of Glibc 2.33, INSTALL says "GNU 'autoconf' 2.69 (exactly)" is
>>> required. So we can safely replace obsoleted macro without worrying
>>> about older autoconf.
>>> This change doesn't affect the contents of "configure" file.
>>
>> If this does not change or improve configure, why change configure.ac
>> then?
> 
> why wait for autoconf to start warning that we're using a deprecated
> macro and failing the build or confusing devs ?
> 
> patch LGTM

Because we use a macro to test for the specific autoconf version:

aclocal.m4:

  5 m4_define([GLIBC_AUTOCONF_VERSION], [2.69])
  6 m4_if(m4_defn([AC_AUTOCONF_VERSION]), GLIBC_AUTOCONF_VERSION, [],
  7       [m4_fatal(m4_flatten(
  8 Exactly version GLIBC_AUTOCONF_VERSION of Autoconf is required but you have
  9 m4_defn([AC_AUTOCONF_VERSION])

So autoconf will start to fail or dumping a warning only if the
distro actually patch it to do so.

I don't have a strong opinion about this patch, but due the *current*
constraints of the auto-generation (which requires an specific autoconf
version), this patch does not improve anything really.

  reply	other threads:[~2021-02-15 13:39 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 12:31 Naohiro Tamura
2021-02-15 12:59 ` Adhemerval Zanella
2021-02-15 13:29   ` Mike Frysinger
2021-02-15 13:39     ` Adhemerval Zanella [this message]
2021-02-15 15:38       ` Mike Frysinger
2021-02-15 16:39         ` Adhemerval Zanella
2021-02-15 17:17           ` Florian Weimer
2021-02-15 18:51             ` Adhemerval Zanella
2021-02-15 20:21           ` Mike Frysinger
2021-02-15 20:31             ` Adhemerval Zanella
2021-02-16  2:36               ` naohirot
2021-02-16 12:01 ` [PATCH 3/3] Removed obsolete AC_CHECK_TOOL_PREFIX Naohiro Tamura
2021-02-16 16:41   ` Zack Weinberg
2021-02-17  1:25     ` naohirot
2021-02-21 23:36   ` Mike Frysinger
2021-02-22  1:48     ` naohirot
2021-02-21 21:31 ` [PATCH] Replaced obsoleted AC_HELP_STRING to AS_HELP_STRING Mike Frysinger
2021-02-22  1:41   ` naohirot
2021-02-23  2:02   ` Carlos O'Donell
2021-05-10  0:52     ` naohirot
2021-05-10  1:17       ` Mike Frysinger
2021-05-10  2:15         ` naohirot
2021-05-10 14:16           ` naohirot

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