Mailinglist Archive: opensuse-factory (648 mails)

[Marcus Meissner <meissner@xxxxxxx>]

On Fri, Nov 05, 2010 at 10:59:07AM +0100, Richard Guenther wrote:
> On Fri, 5 Nov 2010, Andreas Jaeger wrote:
>
> > On Friday 05 November 2010 08:44:19 Ludwig Nussel wrote:
> > > Andreas Jaeger wrote:
> > > > On Thursday 04 November 2010 21:53:38 Andrew Jorgensen wrote:
> > > > > On Thu, 2010-11-04 at 21:16 +0100, Dirk Müller wrote:
> > > > > > On Thursday 04 November 2010, Pavol Rusnak wrote:
> > > > > > > It seems only Arch and openSUSE have 8.0, all of the rest uses
> > > > > > > v6 or libjpeg-turbo.
> > > > > >
> > > > > > Thats correct, mainly due to LSB requirements, which we chose to
> > > > > > ignore.
> > > > >
> > > > > I'm going to recommend that we stop ignoring LSB requirements. 
> > > > > There are some very good reasons to comply with LSB and we fail
> > > > > when we don't. This pixbuf loader bug is just one example.
> > > >
> > > > There are different  ways to fullfill LSB. For LSB it suffices if we
> > > > have libjpeg6 available so that applications build against it work.
> > > > We can still use libjpeg8 as default jpeg library. I'm assuming that
> > > > v6 and v8 have different sonames...
> > >
> > > Both libraries may nevertheless end up in the same process if a
> > > binary is linked against libjpeg6 as well as another distro provided
> > > lib that links against libjpeg8. Result is a crash due to clashing
> > > symbol names. IOW the application no longer works even though it
> > > only links against LSB libraries.
> >
> > Exactly.
> >
> > so, the question in this case should not be LSB compliance but  what to do 
> > with libjpeg. From the previous discussion, it looks like going back to 
> > libjpeg6 or libjpeg-turbo might solve a couple of problems our users get 
> > with third party software - so let's do it.
>
> Adopting a symbol versioning scheme would also do the trick.  The trick
> is of course to choose one that matches what other distros do or
> to convince upstream to provide one.  It's really not _that_ hard.

libjpeg8 has at least started one.

Not sure how Debian does implement the versioning for libjpeg6, it seems to do 
it
at least.

Ciao, Marcus
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