The polkit-0.96_r1 ebuild depends on >=gtk-doc-1.13 absolutely, and also on >=gtk-doc-1.13 when the doc flag is set. One of these line is superfluous. Reproducible: Always Steps to Reproduce: 1. Emerge polkit without the doc flag 2. 3. Actual Results: Docs will be emerged. Expected Results: Docs will not be emerged.
gtk-doc-am != gtk-doc. It is needed for eautoreconf and is not optional here.