<div id="comment:0"></div> BAck in sage 9.1 we had issues with building pdf docs because of missing raw strings. Some issues that were also happening in vanilla sage have been fixed and merged but sage-on-gentoo continued to carry a few extra ones. This ticket is to merge those leftovers. Component: **documentation** Keywords: **sd111** Author: **François Bissey** Branch/Commit: **[`27aee93`](https://github.com/sagemath/sagetrac-mirror/commit/27aee93e71382b6978c0567d4c8b331c541f7cd6)** Reviewer: **Frédéric Chapoton** _Issue created by migration from https://trac.sagemath.org/ticket/31032_