title: Install Qt5.8 libraries on Ubuntu 14 x86_64
body: <p>I want to run a program which needs Qt5.8 libraries, and the underlying OS is Ubuntu 14.05.5 LTS</p>
  
  <p>This OS seems to include a prebuilt package for Qt 5.2.1 and nothing later in the repos.</p>
  
  <p>Can I safely add Qt5.8 libraries? How would I do so?  (I can only find instructions for installing the full Qt IDE)</p>