units: make systemd-homed.service installable

Fixes #15083. Users might want to disable homed if not used to save resources.

presets/90-systemd.preset

@@ -20,6 +20,7 @@ enable systemd-timesyncd.service
 enable systemd-networkd.service
 enable systemd-resolved.service
 enable systemd-repart.service
+enable systemd-homed.service
 
 disable console-getty.service
 disable debug-shell.service

test/units/testsuite-46.service

@@ -1,7 +1,9 @@
 [Unit]
 Description=TEST-46-HOMED
-Before=getty-pre.target
 Wants=getty-pre.target
+Before=getty-pre.target
+Wants=systemd-homed.service
+After=systemd-homed.service
 
 [Service]
 ExecStartPre=rm -f /failed /testok

units/meson.build

@@ -201,8 +201,7 @@ in_units = [
         ['systemd-portabled.service',            'ENABLE_PORTABLED',
          'dbus-org.freedesktop.portable1.service'],
         ['systemd-userdbd.service',              'ENABLE_USERDB'],
-        ['systemd-homed.service',                'ENABLE_HOMED',
-         'multi-user.target.wants/ dbus-org.freedesktop.home1.service'],
+        ['systemd-homed.service',                'ENABLE_HOMED'],
         ['systemd-quotacheck.service',           'ENABLE_QUOTACHECK'],
         ['systemd-random-seed.service',          'ENABLE_RANDOMSEED',
          'sysinit.target.wants/'],

units/systemd-homed.service.in

@@ -34,3 +34,7 @@ SystemCallArchitectures=native
 SystemCallErrorNumber=EPERM
 SystemCallFilter=@system-service @mount
 @SERVICE_WATCHDOG@
+
+[Install]
+WantedBy=multi-user.target
+Alias=dbus-org.freedesktop.home1.service