Thanks for your reports. As you are aware we are just introducing the new upstream hplip, at the same time as dpkg-dev updated the rules for dpkg-shlibs, and that is responsible for the issues you can see.
We initially uploaded to experimental, which did build correctly across the buildds, but then the new dpkg-dev caused problems. Fortunately a debian/shlibs is what is required and I hope to have that uploaded shortly. Mark
signature.asc
Description: This is a digitally signed message part.