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Diffstat (limited to 'vnet/vnet/hdlc/hdlc.h')
-rw-r--r--vnet/vnet/hdlc/hdlc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/vnet/vnet/hdlc/hdlc.h b/vnet/vnet/hdlc/hdlc.h
index e5cbe62d33d..73b15c2fac7 100644
--- a/vnet/vnet/hdlc/hdlc.h
+++ b/vnet/vnet/hdlc/hdlc.h
@@ -44,7 +44,7 @@
#include <vnet/hdlc/packet.h>
#include <vnet/pg/pg.h>
-vnet_hw_interface_class_t hdlc_hw_interface_class;
+extern vnet_hw_interface_class_t hdlc_hw_interface_class;
typedef enum {
#define hdlc_error(n,s) HDLC_ERROR_##n,