contrib: drop apparmor and systemd build-system integration

[emersion]

We get too many distribution-specific bug reports about them.

Let's not install these by default. Let's leave it to distributions to adapt and ship these.

[vilhalmer]

Looks extremely good to me. :)

[WhyNotHugo]

The D-Bus service file is now broken, and should not be installed any more either (since it references the no-longer-installed-by-default systemd file).

[emersion]

Fixed in dbd9c2b

[WhyNotHugo]

dbd9c2b just makes everything worse.

I've put a drop-in mako.service file to run mako as a systemd service (this works before dbd9c2b). With dbd9c2b, however, mako is now started as a non-systemd service by the dbus daemon.

There's no way for me to get mako running as a systemd service any more, unless I manually edit /usr/share/dbus-1/services/fr.emersion.mako.service. However, users should not be expected to edit a system file this.

[emersion]

Distributions should.

[WhyNotHugo]

So distributions now need to manually patch this file, and also install the systemd.service file, right?

Can the patch for fr.emersion.mako.service be included in contrib too? I'm just looking to avoid downstreams from having to each redo the same work (and also prevent so much fragmentation).

[emersion]

It's just a single line to be appended to the D-Bus service file. Maybe contrib/systemd/README with some explanations would be nice to have.