Add support to binding client to interface.
diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index 266d5a2..84a10c8 100644
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -1973,6 +1973,7 @@
 	context->http_proxy_port = 0;
 	context->http_proxy_address[0] = '\0';
 	context->options = info->options;
+	context->iface = info->iface;
 	/* to reduce this allocation, */
 	context->max_fds = getdtablesize();
 	lwsl_notice(" static allocation: %u + (%u x %u fds) = %u bytes\n",