Core: Fix non pch build (gcc)

src/server/shared/Utilities/Util.cpp

@@ -21,8 +21,15 @@
 #include "utf8.h"
 #include "SFMT.h"
 #include "Errors.h" // for ASSERT
+#include <stdarg.h>
 #include <boost/thread/tss.hpp>
 
+#if PLATFORM == PLATFORM_UNIX
+  #include <sys/socket.h>
+  #include <netinet/in.h>
+  #include <arpa/inet.h>
+#endif
+
 static boost::thread_specific_ptr<SFMTRand> sfmtRand;
 
 static SFMTRand* GetRng()