build: make precompiled headers more useful

This can reduce the compilation time of a release
build (without tests) by more than 40%

Refs: #5212
Change-Id: I977aff0c0c7becbfee8a8b55605b81d0c014829b
diff --git a/daemon/face/multicast-udp-transport.cpp b/daemon/face/multicast-udp-transport.cpp
index bb373fd..e0b7ac5 100644
--- a/daemon/face/multicast-udp-transport.cpp
+++ b/daemon/face/multicast-udp-transport.cpp
@@ -29,6 +29,8 @@
 
 #include "common/privilege-helper.hpp"
 
+#include <boost/asio/ip/multicast.hpp>
+#include <boost/asio/ip/v6_only.hpp>
 #include <boost/functional/hash.hpp>
 
 #ifdef __linux__