comparison vamp-server/convert.cpp @ 153:e558e042d9c7

The gcc version Travis is using complains about the default return;
changing that, but a bit worried this may presage more

         tag = r.getId().getTag();
         return { RequestOrResponse::RpcId::Tag, 0, tag };
     case piper::RpcRequest::Id::Which::NONE:
         return { RequestOrResponse::RpcId::Absent, 0, "" };
     }
-    return {};
+    return { RequestOrResponse::RpcId::Absent, 0, "" };
 }
 
 template <typename Builder>
 static void
 buildCapnpId(Builder &b, const RequestOrResponse::RpcId &id)