[BRLTTY] installation of systemd unit files

[Mike Gorse]

Hi,

I am preparing an update to 5.5 for openSUSE and noticed that systemd unit 
files were being installed to /usr/lib64 on 64-bit systems, where our 
systemd unit files are under /usr/lib. I found this change:

>From e89dd966fa6fcdb40b4de5f0385821604e21ef47 Mon Sep 17 00:00:00 2001
From: Dave Mielke <dave at mielke.cc>
Date: Thu, 30 Jun 2016 15:21:58 -0400
Subject: [PATCH] The udev rules should be under /lib (not /etc). (dm)

This change also patched the systemd Makefile.in to use $(libdir), but the 
rationale isn't clear from the commit message, which only mentions udev. 
Is there a problem that is solved by this change?

For the moment, I've reverted that part of the commit in my openSUSE 
build, although I'm not sure if that is the thing to do upstream. Dbus has 
a configure option that allows the unit directory to be specified; maybe 
that is the thing to do.

Thanks,
-Mike