UT</span></code> is missing; if the command does not actually
create the <code class="docutils literal notranslate"><span class="pre">OUTPUT</span></code>, the rule will always run.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.1: </span>Arguments to <code class="docutils literal notranslate"><span class="pre">DEPENDS</span></code> may use
<span class="target" id="index-2-manual:cmake-generator-expressions(7)"></span><a class="reference internal" href="../manual/cmak