There's a merged pull request on the void-packages repository

par: added unicode support
https://github.com/void-linux/void-packages/pull/15812

Description:
Subj. Just added unicode patch made by Jérôme Pouiller as of: http://sysmic.org/dotclear/index.php?post/2006/06/22/55-add-multibyte-characters-support-in-par