openbox-menu does not need openbox to function or be built. openbox-menu just generate XML file of the particular format, which can be (but not have to be) used by Openbox AND many other Openbox-compatible window managers. For example, it works well with labwc from wayland-desktop overlay, without installing x11-wm/openbox. Reproducible: Always
Created attachment 900173 [details, diff] Patch to remove x11-wm/openbox from deps