<p>In <a href="https://github.com/RIOT-OS/RIOT/pull/3744#discussion_r38562777">sys/include/net/gnrc/ipv6/nc.h</a>:</p>
<pre style='color:#555'>> @@ -118,7 +119,9 @@ extern "C" {
>   *          </a>.
>   */
>  typedef struct {
> +#ifdef MODULE_GNRC_NDP_NODE
</pre>
<p>Not topic of this PR <a href="https://github.com/RIOT-OS/RIOT/pull/3748" class="issue-link" title="gnrc_sixlowpan_nd: initial import of host behavior of 6LoWPAN-ND">#3748</a> introduces this feature.</p>

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