When I tried installing the Systemd package for Perl the error messages were written for debian or redhat;
These are the steps I used to install Linux::Systemd:
# zypper in systemd-devel
# reboot
# cpan Linux::Systemd
When you write a Howto, I guess it is better to include some information on the background (why would one want what you go to describe) and where the difficulties might be (assuming that you do not write a Howto to explain the obvious).
Also some background on the steps you took would be inetresting, so that people get some insight in what matters and why.