Ever tried to install this plugin on a pure sysv-init-system and you never got it to work as advertised? Maybe this HOWTO might come in handy.

You want to see a proof, here it is (a snippet from /var/log/syslog):

• Oct  9 12:35:12 mars dbus-daemon[6220]: [session uid=1002 pid=6218] Activating service name='com.canonical.AppMenu.Registrar' requested by ':1.15' (uid=1002 pid=6338 comm="/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 ")
  Oct  9 12:35:12 mars dbus-daemon[6220]: [session uid=1002 pid=6218] Successfully activated service 'com.canonical.AppMenu.Registrar'

and

• ~$ env | grep GTK_M
  GTK_MODULES=appmenu-gtk-module

The solution, bases on the motto "if you can't make it - fake it" and a still reasonably sane Lightdm and Xfce4-Core, is actually fairly simple. A purist might bark at it - but it does work flawlessly and should be "futureproof" for the whole of Chimaera's live-cicle.

On my box it does now take about 2 seconds longer to get from the login to the desktop. I am not too thrilled about that. Any feedback is welcome especially a better but tested solution. Please share. I would like to see this HOWTO to be the standard goto for devuan users experiencing problems with this plugin.

OK, here we go....in 4 easy steps.

Step 1

Packages required:

• [INSTALL, DEPENDENCIES] appmenu-gtk-module-common:amd64 0.7.6-2
  [INSTALL, DEPENDENCIES] appmenu-gtk2-module:amd64 0.7.6-2
  [INSTALL, DEPENDENCIES] appmenu-gtk3-module:amd64 0.7.6-2
  [INSTALL, DEPENDENCIES] appmenu-registrar:amd64 0.7.6-2
  [INSTALL, DEPENDENCIES] libappmenu-gtk2-parser0:amd64 0.7.6-2
  [INSTALL, DEPENDENCIES] libappmenu-gtk3-parser0:amd64 0.7.6-2
  [INSTALL, DEPENDENCIES] libdbusmenu-gtk4:amd64 18.10.20180917~bzr492+repack1-2
  [INSTALL, DEPENDENCIES] vala-panel-appmenu-common:amd64 0.7.6+dfsg1-3
  [INSTALL] xfce4-appmenu-plugin:amd64 0.7.6+dfsg1-3

and add the plugin to the panel.

Step 2

As user:

$ cp /etc/xdg/xfce4/xinitrc ~/.config/xfce4/
$ nano ~/.config/xfce4/xinitrc

and paste the following snippet into the file....

...just before the following line (near the end of the file)

and save and exit nano

Step 3

As root:

# nano /etc/lightdm/lightdm.conf

Under the section

change

to

save and exit nano

then

# mkdir /etc/lightdm/scripts
# nano /etc/lightdm/scripts/activate-appmenu-bus

and paste the following into the file:

save and exit nano and make the file executable (-rwxr-xr-x)!

Step 4 (Final)

A '/etc/init.d/lightdm restart' might be good enough but I recommend a shutdown because 'dbus' is involved.

Enjoy your global-menu.

-------------------

Side-Note:
After you got it working you will see in ~/.xsession-errors
or after a 'xfce4-panel -r' in the terminal the following:

Ignore it, it is not relevant for the xfce4-appmenu-plugin to work properly in the Devuan-Environment. I think it is an Ubuntu/Kubuntu thingy because the appmenu-registrar gets registered under: 'com.canonical.AppMenu.Registrar' although it seems to expect to be registered under 'org.valapanel.AppMenu,Registrar' when invoked directly as a USER. Just another mystery (at least for me) in the changed linux-landscape of obfuscations.