linux-ext4 - Re: [PATCH XFSPROGS 1/3] configure.in: Declare a requirement for at least autoconf 2.50

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Message-ID: <20110722142850.GB19681@infradead.org>
Date:	Fri, 22 Jul 2011 10:28:50 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Theodore Ts'o <tytso@....edu>
Cc:	Ext4 Developers List <linux-ext4@...r.kernel.org>, xfs@....sgi.com
Subject: Re: [PATCH XFSPROGS 1/3] configure.in: Declare a requirement for at
 least autoconf 2.50

On Thu, Jul 21, 2011 at 07:50:35PM -0400, Theodore Ts'o wrote:
> On Debian/Ubuntu systems, if autoconf version 2.13 is installed,
> autoconf will try to automatically figure out whether autoconf 2.13 or
> something more modern is required (since the autoconf maintainers,
> curses be upon them, didn't bother to maintain compatibility between
> autoconf 2.13 and 2.50).  Unfortunately, the hueristics aren't
> perfect, and although the configure.in file looks superficially like
> it will be compatible with autoconf 2.13, it isn't.  You will end up
> with a number of very subtle compilation failures if you use autoconf
> 2.13.
> 
> So declare a requirement for autoconf 2.50 using AC_PREREQ(2.50).

Thanks a lot, I've applied our xfsprogs and xfstests patches, and also
ported the change to the xfsdump and dmapi repositories.
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