pua_dialoginfo(k): missing extern for pua_send_publish

modules_k/pua_dialoginfo/pua_dialoginfo.h

@@ -27,7 +27,7 @@
 #define _PUA_DLGINFO_H
 #include "../pua/pua_bind.h"
 
-send_publish_t pua_send_publish;
+extern send_publish_t pua_send_publish;
 
 void dialog_publish(char *state, str *entity, str *peer, str *callid, 
 	unsigned int initiator, unsigned int lifetime, str *localtag, str *remotetag);