On Thu, 11 Jan 2018, Konstantin Olchanski wrote: > I recommend against installing ROOT from EPEL. By past experience > the version of ROOT in EPEL is always severely out of date > and is always built with the wrong options. To which bug do you refer? of course EPEL folks cannot fix what they do not get bugs get or respond to complaints they do not know about there is only one open and possibly relevant non-'cross platform build' bug open as I read bugzilla https://bugzilla.redhat.com/buglist.cgi?cmdtype=runnamed&list_id=8294084&namedcmd=root%20m-p%20Open and looking at the open to close history of the 51 closed bugs, it seems it is being actively maintained -- over 12 closes in 2017, some seemingly substantial https://bugzilla.redhat.com/buglist.cgi?cmdtype=runnamed&list_id=8294092&namedcmd=root%20m-p%20Closed As the OP seemed to be looking to bootstrap an install, concerns about temporary bootstrap staleness are probably is not relevant, as the library mentioned would get updated anyway -- Russ herrold