Josh Triplett writes ("Bug#746578: libpam-systemd to flip dependencies -
proposal"):
> On Wed, 5 Nov 2014 11:49:45 +0000 Ian Jackson
> <ijack...@chiark.greenend.org.uk> wrote:
> > Thanks again to Josh for all his careful and constructive
> > interventions in the discussion. I'm glad to see that he's now happy
> > with this proposal.
>
> This proposal doesn't seem to include the change you made in git commit
> 227f496617929c48bfd20a9c96eead8b91ee69b7 to fix a typo I reported in
> item 4:
Bum.
Given that I had already formally made the change, I think my call for
votes should be read as being a CFV on the revised version,
notwithstanding that the resolution text was incorrectly stated in the
CFV email. For the avoidance of any doubt:
I am calling for votes on the text below:
Y (override, swap dependencies, requires >>3:1)
FD
Ian.
(My previous vote of Y,FD stands.)
===
Rationale (Constitution 6.1(5)):
1. Currently libpam-systemd (which is pulled in by quite a few
dependency chains) Depends on `systemd-sysv | systemd-shim (>= 8-2)'.
2. The effect of this is that installing some packages which depend
(directly or indirectly) on libpam-systemd can cause a user's init
system to be switched to systemd, even on systems where a user has
deliberately chosen not to use the default init system, and even
when the switch is unnecessary.
3. Swappping the order of these dependencies would avoid that and has
no harmful effect:
4. In particular, on systems that already have systemd-sysv installed,
libpam-systemd will still not pull in systemd-shim, thus minimizing
the risk of breakage on systemd systems. However, on systems that
intentionally do not have systemd-sysv installed, the installation
of libpam-systemd will then prefer to pull in systemd-shim and keep
the installed init system rather than switching to systemd-sysv.
Decision (Constitution 6.1(4)):
5. We therefore overrule the decision of the maintainer of
libpam-systemd binary package. The Depends entry
systemd-sysv | systemd-shim (>= 8-2)
should be replaced by
systemd-shim (>= 8-2) | systemd-sysv
6. For the avoidance of doubt, we do not intend to set this specific
syntax in stone. For example, if in future libpam-systemd needs to
depend on a later systemd-shim, or needs a versioned rather than
unversioned dependency on systemd-sysv, that is fine and would not
contradict our decision.
Release (Constitution 6.1(5)):
7. Our advice is that this change should be in jessie. If necessary,
this view should be conveyed to the Release Team, after the change
is in unstable, by filing an unblock request in the usual way.
===
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