change default path of systemd files to /lib/sysemd/system.

ChangeLog

@@ -9,6 +9,8 @@
  - fix 'make test' in python 2.6
  - support jinja2 as a templating engine.  Drop the hard requirement on
    cheetah.  This helps in python3 effort. (LP: #1219223)
+ - change install path for systemd files to /lib/systemd/system
+   [Dimitri John Ledkov]
 0.7.5:
  - open 0.7.5
  - Add a debug log message around import failures

setup.py

@@ -35,22 +35,6 @@ import subprocess
 def is_f(p):
     return os.path.isfile(p)
 
-
-INITSYS_FILES = {
-    'sysvinit': [f for f in glob('sysvinit/redhat/*') if is_f(f)],
-    'sysvinit_deb': [f for f in glob('sysvinit/debian/*') if is_f(f)],
-    'systemd': [f for f in glob('systemd/*') if is_f(f)],
-    'upstart': [f for f in glob('upstart/*') if is_f(f)],
-}
-INITSYS_ROOTS = {
-    'sysvinit': '/etc/rc.d/init.d',
-    'sysvinit_deb': '/etc/init.d',
-    'systemd': '/etc/systemd/system/',
-    'upstart': '/etc/init/',
-}
-INITSYS_TYPES = sorted(list(INITSYS_ROOTS.keys()))
-
-
 def tiny_p(cmd, capture=True):
     # Darn python 2.6 doesn't have check_output (argggg)
     stdout = subprocess.PIPE
@@ -67,6 +51,28 @@ def tiny_p(cmd, capture=True):
                             % (cmd, ret, out, err))
     return (out, err)
 
+def systemd_unitdir():
+    cmd = ['pkg-config', '--variable=systemdsystemunitdir', 'systemd']
+    try:
+        (path, err) = tiny_p(cmd)
+    except:
+        return '/lib/systemd/system'
+    return str(path).strip()
+
+INITSYS_FILES = {
+    'sysvinit': [f for f in glob('sysvinit/redhat/*') if is_f(f)],
+    'sysvinit_deb': [f for f in glob('sysvinit/debian/*') if is_f(f)],
+    'systemd': [f for f in glob('systemd/*') if is_f(f)],
+    'upstart': [f for f in glob('upstart/*') if is_f(f)],
+}
+INITSYS_ROOTS = {
+    'sysvinit': '/etc/rc.d/init.d',
+    'sysvinit_deb': '/etc/init.d',
+    'systemd': systemd_unitdir(),
+    'upstart': '/etc/init/',
+}
+INITSYS_TYPES = sorted(list(INITSYS_ROOTS.keys()))
+
 
 def get_version():
     cmd = ['tools/read-version']