Export zeroes.

babel.c

@@ -69,7 +69,7 @@ int max_hopcount = 25;
 struct network nets[MAXNETS];
 int numnets = 0;
 
-static const unsigned char zeroes[16] = {0};
+const unsigned char zeroes[16] = {0};
 
 char *state_file = "/var/lib/babel-state";
 

babel.h

@@ -92,6 +92,8 @@ extern unsigned char myid[16];
 extern struct network nets[MAXNETS];
 extern int numnets;
 
+extern const unsigned char zeroes[16];
+
 extern int protocol_port;
 extern unsigned char protocol_group[16];
 extern int protocol_socket;

message.c

@@ -38,7 +38,6 @@ THE SOFTWARE.
 
 struct timeval update_flush_time = {0, 0};
 
-static const unsigned char zeroes[16] = {0};
 const unsigned char packet_header[4] = {42, 0, 0, 0};
 
 unsigned int jitter;