ss cload calls.  If cload finds an
up-to-date output C file and shared library, it simply loads the library, rather than
going through all the trouble of writing and compling it.
</p>

<p><em>c-info</em> is a list that describes the C entities that you want to load into s7.
It can be either one list describing one entity, or a list of such lists.
Each description has the form:
</p>

<pre class="indented">
(return-type entity-name-in-C (argument-type...))
</pre>

<p>where each entry is a symbol, and C names 