Syncing photos from iPhoto on a Mac to Photos under iOS8 iTunes used to have an option for syncing an iPhoto library with one's iPhone. This seems to be gone now, leaving only the option of syncing a folder of pictures from one's Mac. Is there some way to sync an iPhoto library, or should I export all these photos to a directory and sync that?
Sync Photos from ... iPhoto [or Aperture, a named folder, or Pictures]


All photos, albums, Events &amp; Faces  


That's everything.

Alternatively,  


Selected albums Events &amp; Faces &amp; automatically include events from...