$ make tidy Failed on eclass-writing/index.html: line 297 column 3 - Warning: <td> attribute "nowrap" not allowed for HTML5 line 365 column 3 - Warning: <td> attribute "nowrap" not allowed for HTML5 make: *** [Makefile:93: tidy] Error 1 It validates with app-text/tidy-html5-5.7.28-r1. This looks like a real issue which should be fixed in the XSL stylesheet.
Should be fixed now. https://gitweb.gentoo.org/proj/devmanual.git/commit/?id=80e024ed24de7784c4c891a721d40816f5eab4b2 commit 80e024ed24de7784c4c891a721d40816f5eab4b2 Author: Ulrich Müller <ulm@gentoo.org> Date: Sun Oct 10 12:27:49 2021 +0200 devbook.xsl: td doesn't have a nowrap attribute in HTML 5 Problem seen with tidy from app-text/htmltidy-5.8.0-r1. Signed-off-by: Ulrich Müller <ulm@gentoo.org>