title: How can I suppress "unused parameter" warnings in C?
body: <p>For instance:</p>
  <pre><code>Bool NullFunc(const struct timespec *when, const char *who)
  {
     return TRUE;
  }
  </code></pre>
  <p>In C++ I was able to put a <code>/*...*/</code> comment around the parameters. But not in C of course, where it gives me the error:</p>
  <blockquote>
  <p>error: parameter name omitted</p>
  </blockquote>