$ yum groupinstall "Development Tools"
$ yum install libevent-devel openssl-devel
$ ./configure
$ make
$ make install
That's it. I actually started writing this when I thought it would be more complicated.
It looks like the RPM for CentOS doesn't work with NTor (the new, faster) handshakes. There's some discussion on tor-relays@ about this here.
