There's a new version of Polipo available. I had to rename the old ebuild and modify the gentoo-patch slightly to make it work. Actually I just replaced 0.9.8 by 0.9.9. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 74138 [details, diff] polipo-0.9.9-gentoo.patch
the new version has been submitted to the tree.