Here's a preliminary cmap rpm review request: https://bugzilla.redhat.com/show_bug.cgi?id=859246

So far, the only package I've worked on making this compatible with is my own, pdfminer: https://bugzilla.redhat.com/show_bug.cgi?id=823679. So it will almost certainly require modifications to work nicely with poppler-data and whatever other bundled packages there are- that's a work in progress.

Any idea what the simplest way would be to get a list of all packages bundling cmap data?

Ben