extends visibility.
It may be referenced like any target built within the project.
<code class="docutils literal notranslate"><span class="pre">IMPORTED</span></code> libraries are useful for convenient reference from commands
like <span class="target" id="index-3-command:target_link_libraries"></span><a class="reference internal" href="target_link_libraries.html#command:target_link_libraries" title="target_link_libraries"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre"