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Lennart Poettering authored
systemd manages seats and users. This patch optionally asks systemd whether a user is at the console. It used libsystemd-login for that, a low-level library that allows querying this kind of information without expensive round trips. In order to be nice to the Debian folks this patch falls back to traditional modes of operation if systemd is not found to be around. Bug: https://bugs.freedesktop.org/show_bug.cgi?id=39609 Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
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