Installation problems (Ubuntu 14.04)

Following those instructions I was able to install root successfully. Now, when I try to compile using root-config --cflags --glibs I don’t get any error.
Though there is a problem: when I try to run root (typing root) I get:

The program 'root' is currently not installed. You can install it by typing: sudo apt-get install root-system-bin unless I go in v5-34-00-patches directory and do . bin/thisroot.sh; after this I can run root without any problem. How can I make permanent this installation?