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-rw-r--r--lwip/port/include/netif/hurdtunif.h4
-rw-r--r--lwip/port/netif/hurdtunif.c3
2 files changed, 5 insertions, 2 deletions
diff --git a/lwip/port/include/netif/hurdtunif.h b/lwip/port/include/netif/hurdtunif.h
index 65e34ac3..43d55348 100644
--- a/lwip/port/include/netif/hurdtunif.h
+++ b/lwip/port/include/netif/hurdtunif.h
@@ -53,8 +53,8 @@ struct hurdtunif
uint8_t read_blocked;
};
-struct port_class *tunnel_cntlclass;
-struct port_class *tunnel_class;
+extern struct port_class *tunnel_cntlclass;
+extern struct port_class *tunnel_class;
/* Device initialization */
err_t hurdtunif_device_init (struct netif *netif);
diff --git a/lwip/port/netif/hurdtunif.c b/lwip/port/netif/hurdtunif.c
index 728db9ac..6e3676c7 100644
--- a/lwip/port/netif/hurdtunif.c
+++ b/lwip/port/netif/hurdtunif.c
@@ -34,6 +34,9 @@
#include <lwip-hurd.h>
+struct port_class *tunnel_cntlclass;
+struct port_class *tunnel_class;
+
/* Add to the end of the queue */
static void
enqueue (struct pbufqueue *q, struct pbuf *p)