Lots of releases have been made since 2.3.1 currently in the tree.
+ 06 Dec 2013; Sergey Popov <pinkbyte@gentoo.org> +proot-3.2.1.ebuild, + +files/proot-3.2.1-makefile.patch: + Version bump, wrt bug #490840. Thanks to Tim Harder for discovering this + issue Bumped, sorry for such long delay