jessie is oldoldstable and only in LTS by now, do not use it any more for productive projects. This reverts commit 401c6cac. And besides, it removes all traces of actual foreign code.
might even fix the general case and render the use of literate moot
Disclaimer: this embeds some code from Debian sid (2016.20170123-3) into this package; I hereby disclaim any and all interest in that and add it merely for users’ convenience, upgrading their utf8.def inline.