may in turn pull in a lot of standard libary code. In resource-constrained systems, this should be defined to something less resource-consuming. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ga8e2cba4c97dd38f4d517ed21cf109ade">&#9670;&nbsp;</a></span>LWIP_PROVIDE_ERRNO</h2>

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          <td class="memname">#define LWIP_PROVIDE_ERRNO</td>
        <