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

[vpp.git] / src / vnet / ip / ping.h

diff --git a/src/vnet/ip/ping.h b/src/vnet/ip/ping.h
index b1b71f6..3f7488f 100644 (file)
--- a/src/vnet/ip/ping.h
+++ b/src/vnet/ip/ping.h
@@ -56,7 +56,7 @@ typedef struct ping_main_t
   ping_run_t *ping_run_by_icmp_id;
 } ping_main_t;
 
-ping_main_t ping_main;
+extern ping_main_t ping_main;
 
 #define PING_DEFAULT_DATA_LEN 60
 #define PING_DEFAULT_INTERVAL 1.0