Bug#940034: libelogind0: replacing a core system library and conflicting against the default init considered harmful

[Laurent Bigonville]

Hello,

When I looked I elogind a while back I was able to build a package 
without having a public libelogind0, I basically had that in my 
debian/rules file:

# We only build the libelogind0 and libelogind-dev if we are building for
# Devuan or its derivatives
ifneq ($(shell dpkg-vendor --derives-from Devuan && yes), yes)
export DH_OPTIONS=--no-package=libelogind0 --no-package=libelogind-dev
endif

libelogind library is only needed for applications that want to interact 
with the daemon, in the ITP (#905388) bug I also noted that.

If I'm not mistaken, libsystemd (and libelogind) are using D-Bus to 
communicate with the daemon part, was it checked that the API used is 
compatible? Is there documentation of the differences, if any?

Bottom line, is libelogind even needed in the archive to achieve your 
goal of having an implementation of the login1 D-Bus API not requiring 
systemd as PID1?

my 2¢