I discovered that JSCOnly can be built with the GLib event loop by passing the cmake argument -DEVENT_LOOP_TYPE="glib"
But the build is currently broken. Lets fix it.
Created attachment 304595 [details]
Comment on attachment 304595 [details]
Clearing flags on attachment: 304595
Committed r214025: <http://trac.webkit.org/changeset/214025>
All reviewed patches have been landed. Closing bug.