On May 3, 2012 9:30 AM, "Pino Toscano" <p...@debian.org> wrote:
>
> Alle giovedì 3 maggio 2012, Andres Mejia ha scritto:
> > On Thu, May 3, 2012 at 3:44 AM, Pino Toscano <p...@debian.org> wrote:
> > > Package: libav
> > > Version: 6:0.8.1-7
> > > Severity: important
> > >
> > > Hi,
> > >
> > > libav 6:0.8.1-7 reenables the use of opencv... which itself uses
> > > libav libraries. This currently makes libav unbuildable on mipsel
> > > and hurd-i386, and generically makes libav no more bootstrap'able
> > > without having itself compiled already.
> > > Could you please drop the opencv usage again, please?
> > >
> > What could be done instead is a binary only upload with opencv
> > support disabled (i.e. use dpkg-buildpackage -B). Doing it on our
> > end will not require changing the version. Once this package is
> > uploaded, the release team can then be asked to do a binNMU for
> > these archs, which will bring back opencv support since the archive
> > will contain the regular *.debian.tar.gz changes that included
> > opencv.
> >
> > I believe this is better than doing a full build on all archs without
> > opencv, then doing another build with opencv.
>
> This mess (which is only a mess, not a clean solution) does not solve at
> all the fact that you cannot do a clean build of libav without having
> libav compiled already (for opencv).
> I don't see this as a viable solution, especially if in the future the
> epoch is raised bringing again conflicts between the old libav libraries
> and the new one.
>
> --
> Pino Toscano

I'm not entirely certain how build circular dependency issues like this are
resolved. Perhaps we should ask for help from the toolchain package
maintainers or debian-devel.

~ Andres
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