[gentoo-systemd] systemd-209+ and compat-libs

[Michał Górny]

Hello, folks.

First of all, two technical matters:

1. I think we have new people on systemd@g.o, you may want to subscribe
   to gentoo-systemd@ mailing list if you didn't,

2. Does anyone feel like needing a team meeting?

Now, for the core issue.

As most of you probably already know, systemd-209 has replaced
the separate libsystemd-* libraries with a single libsystemd.so.
Upstream has provided --enable-compat-libs switch to install
backwards-compat pkg-config files (that all use '-lsystemd')
and backwards-compat .so libraries. The latter used some magic in -209
and is just verbatim copy of libsystemd.so in -210.

As I see it, we have three options now:

1. install both compat pkg-config files and libs (wasting space),

2. install only pkg-config files (a bit of build system hackery but
easy),

3. do not install compat-libs and fix the rev-deps.

I've committed a p.masked systemd-210 using option 2 today but it's
still open to discussion. I'm currently testing all the rev-deps.

I think that (2) is best since it leaves most of the packages working
(only the few that don't do pkg-config break) and links them properly
to the future lib. That is, when we drop the compat completely people
will only have build-time failures and no mis-linked packages.

I've started reporting bugs about packages that fail with it. I'm
already explaining maintainers what the sit is and how to be
future-proof. See bug #502422 [1] for an example.

I don't think there's a point disabling compat completely right now.
I'd rather wait a while till upstreams note the change and start
updating the packages themselves. We can then only fix the few
remaining ones as appropriate.

What are your thoughts?

[1]:https://bugs.gentoo.org/show_bug.cgi?id=502422

-- 
Best regards,
Michał Górny