then you <em>must</em> also select an entry point retrieval mechanism.</p>
<ul>
<li><code>_GLFW_HAS_GLXGETPROCADDRESS</code> to use <code>glXGetProcAddress</code> (recommended)</li>
<li><code>_GLFW_HAS_GLXGETPROCADDRESSARB</code> to use <code>glXGetProcAddressARB</code> (legacy)</li>
<li><code>_GLFW_HAS_GLXGETPROCADDRESSEXT</code> to use <code>glXGetProcAddressEXT</code> (legacy)</li>
<li><code>_GLFW_HAS_DLOPEN</code> to do manual retrieval with <code>dlopen</code> (fallback)</li>
</ul>
<p>In addition, supp