title: How to install gcc 6.4.0 on Cygwin
body: <p>I have installed cygwin then I ran <code>setup-x86_64.exe -q -P wget -P gcc-g++</code> and that installed gcc 5.4.0</p>
  
  <p>But how can I install gcc 6.4.0 on cygwin?</p>