Bug#1069815: wesnoth-1.8-server: new package installs systemd unit in aliased location

[Helmut Grohne]

Package: wesnoth-1.18-server
Version: 1:1.17.26-1
Severity: serious
Justification: do not introduce aliased files into Debian

Hi,

I noticed that wesnoth-1.18-server is a new package and installs a file
below /lib, which is an aliased location that we try to empty to
complete the /usr-move transition via DEP17. I am filing this bug at
RC-severity to stop it from migrating to trixie and hope you agree with
this. Please downgrade if you disagree though note that this kind of
issue will become an RC-bug for all packages later in the trixie cycle.

The simplest fix to this problem is changing

    SYSTEMD_SERVICE = debian/wesnoth-$(BRANCH_VERSION)-server/lib/systemd/system/wesnoth-$(BRANCH_VERSION)-server.service

in debian/rules and move the file to /usr/lib. This is mostly safe for
backports, except that bookworm's debhelper will fail to generate
necessary maintainer scripts. Please bump your debhelper dependency to
13.11.6 (available in bookworm-backports).

Alternatively, adding dh-sequence-movetousr to Build-Depends should also
resolve the matter, but for a new package I'd prefer to fix this right
from the start.

Both solutions are likely applicable to other wesnoth versions as well,
though we don't consider those RC-bugs yet.

Helmut