Add extern to *_main global variable declarations in header files.

[vpp.git] / src / vnet / span / span.h

diff --git a/src/vnet/span/span.h b/src/vnet/span/span.h
index 10de827..ebdb498 100644 (file)
--- a/src/vnet/span/span.h
+++ b/src/vnet/span/span.h
@@ -55,7 +55,7 @@ typedef struct
   vnet_main_t *vnet_main;
 } span_main_t;
 
-span_main_t span_main;
+extern span_main_t span_main;
 
 typedef struct
 {