After installing both zexy and iemlib via Deken in Pd 0.49-1, most of the objects in those externals work. However, some of them do not load.

For example, [date] does not load from zexy, but [any2list] does. Also, [pvu~] does not load from iemlib, but others do.

Am I missing an extra installation step here? Do I have to manually make / install the packages? I'm running macOS 10.14.