title: AX_CXX_COMPILE_STDCXX_11 macro not found
body: <p>Try to install <a href="http://sigrok.org/wiki/Linux" rel="nofollow noreferrer">Sigrok under Linux</a>.
  Step: <strong>libsigrok</strong> installing. When I try
  <em>./autogen.sh</em>
  I get a warning &quot;<strong>AX_CXX_COMPILE_STDCXX_11 macro not found</strong>&quot;.
  As far as I see, it crashes my attempt to make PulseView package later (<em>libsigrokxx&gt;=0.3.0 not found</em>).
  I checked <em>autoconf</em> and <em>autoconf-archive</em> with Synaptic - it's ok. Don't know what to do next. No experience in building programs.
  Thanks!</p>