root-config --bindir
root-config --libdir
root-config --etcdir
root-config --help
Putting “/home/justin/.local/lib” into “/etc/ld.so.conf.d/root.conf” is a crime against the Operating System. 
See also:
[url]ROOTSYS and linux distribution installation
[url]Release 5.32.03 on Ubuntu 12.04