Download it here: https://github.com/l3iggs/RetroArch/rel … .1-rl3iggs
This is a linux x86_64 build from the RetroArch (https://github.com/libretro/RetroArch) repo @ commit 7b3f005 with all the cores that would compile at that time.
Issues you encounter with RetroArch in this build can be noted in this thread, but should also be reported using this link: https://github.com/libretro/RetroArch/issues/new
There’s no need to copy these files any place special or install anything with root permissions. Just extract the archive and run the retroarch executable in the enclosed usr/local/bin directory. Once running, you’ll have to use the settings menu to set up your paths manually. Most importantly ensure that the cores path is mapped correctly to the cores folder provided here.