ocutils literal notranslate"><span class="pre">USE_FOO</span></code> option is saved so that when the
option is re-enabled it retains its old value.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.22: </span>Full <a class="reference internal" href="../command/if.html#condition-syntax"><span class="std std-ref">Condition Syntax</span></a> is now supported.  See policy <span class="target" id="index-0-policy:CMP0127"></span><a class="reference internal" href="../policy/C