Bug#844497: seccomp "Invalid argument" due to old library version

[Stefan Bühler]

Package: systemd
Version: 232-3

Hi,

pdns.service (from pdns-server in testing) didn't start anymore with
this message:

pdns.service: Failed at step SECCOMP spawning /usr/sbin/pdns_server: Invalid argument

(See http://sources.debian.net/src/pdns/4.0.1-5/pdns/pdns.service.in/
for the service configuration.)

Updating libseccomp2 from 2.1.1-1 (stable) to 2.3.1-2 (testing) fixed
it.

systemd 232-3 has a build dependency `libseccomp-dev (>= 2.2.3-3~)`, but
the resulting package only depends on `libseccomp2 (>= 2.1.0)`.

I filed a bug with libseccomp too, and maybe they'll fix their symbols
file for future builds.

In the meantime I suggest adding an explicit minimum libseccomp2
dependency.  Given the same build dependency in 230-7~bpo8+2 this is
probably broken in jessie-backports too.

regards,
Stefan