sudo zypper install MozillaFirefox tmux x11vnc openbox lxpanel parcellite rxvt-unicode wireshark htop iptraf nmap iftop gkrellm xkill ncdu dnsmasq socat
\end{lstlisting}
-Unfortunately, root from CERN is not compatible with the modern compiler suite
-gcc6. Therefore, one has to install and activate the gcc5.
+Currently (2017-11), CERN root 6 is again compatible with the gcc-compilers
+gcc6 and gcc7, so the following is only for a reference if in the future again
+incompatibilites will happen again.
+
+
+
+
+\sout{Unfortunately, root from CERN is not compatible with the modern compiler
+suite gcc6. Therefore, one has to install and activate the gcc5. }
+
+If needed, you can change the default gcc-compiler like this:
\begin{lstlisting}[label=,caption=gcc5]
zypper ar http://download.opensuse.org/repositories/devel:/gcc/openSUSE_Factory/ gcc_devel