As this software work on rpm packages, it is naturally provided as an rpm package, independent
from operating system (noarch type).
It can be installed by the rpm -Uvh rpmorphan*.noarch.rpm
command
It is also provided as a tar.gz, which can be installed by :
tar xvfz rpmorphan-{version}.tgz
cd rpmorphan*
make
make install
PS : the rpm package can be built from tar.gz by the
rpmbuild -tb rpmorphan*.tar.gz
command.