source
Build Prerequisites
The page lists the prerequisite packages that need to be installed on the different platforms to be able to run successfully the ./configure script and to build basic ROOT. If more advanced ROOT plugins are required look at the ./configure output and add the desired third party packages before running ./configure again.
Installing ROOT from Source
Getting the Source
ROOT's source can be downloaded for each of the releases and unpacked with
gzip -dc root_<version>.source.tar.gz | tar -xf -
Subversion
Unlike many other projects, ROOT's trunk is expected to always work. It is a snapshot of the current development; we appreciate feedback and people (you!) using it. The main advantages of using the trunk are: