Add missing includes

fairmq/FairMQMessage.h

@@ -11,6 +11,7 @@
 
 #include <cstddef> // for size_t
 #include <memory> // unique_ptr
+#include <stdexcept>
 
 #include <fairmq/Transports.h>
 

fairmq/FairMQSocket.h

@@ -9,9 +9,10 @@
 #ifndef FAIRMQSOCKET_H_
 #define FAIRMQSOCKET_H_
 
+#include <memory>
+#include <stdexcept>
 #include <string>
 #include <vector>
-#include <memory>
 
 #include "FairMQMessage.h"
 class FairMQTransportFactory;