Install instructions for Ubuntu 15.10

[ferhue]

The instructions are explained in this post:

ROOTaaS C++ kernel sdtout or stderr malformed message with zmq

Ok, I managed to build ROOT6 master (6.07.03) in Debian stretch (sid), by downgrading first the default gcc compiler (5.3) to 4.8. Now all error messages about ABIs, zmq and so on have disappeared. I did this with the update-alternatives method described here: http://askubuntu.com/a/26518. I post the complete workflow, in case someone has the same problem. sudo apt-get install git dpkg-dev make g++ gcc binutils libx11-dev libxpm-dev \ libxft-dev libxext-dev sudo apt-get install gfortran libssl…

You have maybe to replace the version numbers appearing in that instructions, eg. 4.8 with 4.9 or sth similar, check your package manager.