linux-ext4 - Re: [PATCH] debian: Remove uuid packages

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Message-Id: <1248015384.4524.23.camel@quest>
Date:	Sun, 19 Jul 2009 15:56:24 +0100
From:	Scott James Remnant <scott@...ntu.com>
To:	Theodore Tso <tytso@....edu>
Cc:	Andreas Dilger <adilger@....com>, linux-ext4@...r.kernel.org,
	util-linux-ng@...r.kernel.org
Subject: Re: [PATCH] debian: Remove uuid packages

On Sat, 2009-07-18 at 21:13 -0400, Theodore Tso wrote:

> On Fri, Jul 17, 2009 at 02:48:51AM -0400, Andreas Dilger wrote:
> > On Jul 16, 2009  19:59 +0100, Scott James Remnant wrote:
> > > +Build-Depends: texi2html (>= 1.76), gettext, texinfo, dc, pkg-config, dietlibc-dev (>> 0.30) [alpha amd64 arm hppa i386 ia64 mips mipsel powerpc ppc64 s390 sparc], debhelper (>= 7.0), libblkid-dev (>= 2.16), libuuid-dev (>= 2.16)
> > 
> > Same question as for libblkid-dev...  Ideally, even thought the package
> > version is 2.x, the ABI hasn't changed (AFAIK, that was a hard requirement)
> > so this should really still be called libuuid1 for compatibility.
> 
> The so version number for the package is still 1; so the packages
> containing the binary shared libraries are libuuid1 and libblkid1.
> What gets confusing is that version numbers for libblkid-dev,
> libuuid-dev, libblkid1, and libuuid1 will be 2.16.x, not because of
> any soversion number, but because that's the version number of
> util-linux-ng.
> 
It's always dangerous to start confusing SONAMEs or version numbers, and
doubly so to attempt to make them match.

The SONAME of a library reflects its ABI, the version number of software
reflects the author's opinions about it.

Scott
-- 
Scott James Remnant
scott@...ntu.com

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