title: What is "-fuse-linker-plugin, but liblto_plugin.so not found"?
body: <p>I got following error message when I run gcc or dmd compiler.  </p>
  
  <pre><code>gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found
  </code></pre>
  
  <p>I've never configured such linker settings. I'm using <code>gcc version 6.3.0 20170516 (Debian 6.3.0-18)</code></p>