[Pkg-samba-maint] Bug#647430: Bug#647429: libpam-smbpass: prerm is not multiarch-safe

[Frank Chung]

On 25 June 2012 02:29, Ivo De Decker <ivo.dedecker at ugent.be> wrote:

> tags 647429 help
> tags 647430 help
> thanks
>
> On Mon, May 28, 2012 at 04:16:35PM +0200, Jakub Wilk wrote:
> > >Jakub,
> > >
> > >Do you have an example of a package that does 'the right thing'?
> >
> > No, sorry.
> >
> > >What should the package do? The manpage of pam-auth-update says
> > >that pam-auth-update --remove should be called before removing the
> > >module, but this isn't correct if the module remains for another
> > >architecture.
> > >
> > >Should pam-auth-update be made multiarch-aware and handle this
> > >automatically?
> > >
> > >If binaries from multiple architectures call pam on the same
> > >system, and a pam-module is installed for one of these
> > >architectures, but not for the other one, the pam configuration
> > >cannot be correct for both of them.
> >
> > Unfortunately, I have no idea what a proper fix would like either.
> >
> > >Are these issues documented somewhere?
> >
> > I'm not aware of such documentation.
> >
> > I tried to bring up this topic on debian-devel once, but there were
> > no answers: http://lists.debian.org/20120211115057.GA8401@jwilk.net
>
> As I don't know what the proper fix for this bug should be, I'm tagging it
> 'help'. Same thing for #647430, which is the same bug, but for
> libpam-winbind.
>
> Cheers,
>
> Ivo
>
>
>From a naive reading of the Debian Policy Manual (Section 8.2: shared
library support files, <
http://www.debian.org/doc/debian-policy/ch-sharedlibs.html#s-sharedlibs-support-files>)
and Debian Wiki's multi-arch conversion HOWTO (Section: Multi-arch: foreign
support packages, <
http://wiki.debian.org/Multiarch/Implementation#Multi-Arch:_foreign_support_packages>),
it appears that the correct solution would be:

   1. Split libpam-winbind into 2 packages (likewise for libpam-smbpass);
   2. One package contains files under /lib/* ;
   3. The other (libpam-winbind-data?) contains support files under
   /usr/share/* ;
   4. The support files package is made "Multi-Arch: foreign";
   5. The prerm action should be done in the support files package, so that
   it is done only once, no matter how many co-installations of libpam-winbind
   there are.

I must confess that I'm not a regular Debian contributor, just a grateful
user of libpam-winbind who would like to help out (thanks maintainers!).
There may be perfectly good reasons why libpam-winbind (and libpam-smbpass)
is currently one package that I'm ignorant of.

Regards,
Frank
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