ether the OCaml runtime system can emit warnings
    on stderr.  Currently, the only supported warning is triggered
    when a channel created by <code class="code">open_*</code> functions is finalized without
    being closed.  Runtime warnings are enabled by default.</p>
</div>
<ul class="info-attributes">
<li><b>Since</b> 4.03.0</li>
</ul>
</div>

<pre><span id="VALruntime_warnings_enabled"><span class="keyword">val</span> runtime_warnings_enabled</span> : <code class="type">unit -&gt; bool</code></pre><