linux-ext4 - Re: [PATCH] configure: Disable libblkid by default

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Message-Id: <1248015561.4524.26.camel@quest>
Date:	Sun, 19 Jul 2009 15:59:21 +0100
From:	Scott James Remnant <scott@...ntu.com>
To:	Theodore Tso <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org, util-linux-ng@...r.kernel.org
Subject: Re: [PATCH] configure: Disable libblkid by default

On Sun, 2009-07-19 at 07:56 -0400, Theodore Tso wrote:

> > > > I've done the packaging for him, it's just waiting on him to get back
> > > > home to sponsor the uploads.
> > > 
> > > Are the .deb packages somewhere where I can examine them?
> > > 
> > Yes, they're in Ubuntu.
> 
> I just took a quick look at them, and it appears that they are missing
> the libblkid1-dbg, libuuid1-dbg, and uuid-runtime-dbg packages.
> 
We auto-generate debug packages for all binaries in Ubuntu, extracted
from the compiler, e.g.:

http://ddebs.ubuntu.com/pool/main/u/util-linux/libblkid1-dbgsym_2.16-1ubuntu1_i386.ddeb

Since I'm not a Debian maintainer, I don't know how such things are done
in Debian so left this for you and/or Lamont to fill in.

> Also, apparently no once noticed until now, but there's a bug in the
> util-linux-ng's uuid.sym file.  The uuid_pack and uuid_unpack symbols
> are missing, because someone forgot to include them in the uuid.sym
> file.  The debian symbol generation system which I see you carefully
> moved over detected the problem, but you apparently didn't take a
> close enough look at its output to detect the warning messages.
> 
I just copied the symbols file over and applied the update your output
said.

> BTW, **why** is util-linux-ng gratuitously introducing backwards
> incompatibility such that packages built with util-linux-ng won't work
> with the older shared libraries?   There's no reason to do this.
> 
> There is a hint in the (obsolete) comments in uuid.sym that suggests a
> reason why, but it's not justified for libuuid:
> 
You'd have to ask Karel about that one.

However I think now it's happened, we shouldn't back it out again.

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

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