Include winsock2.h before windows.h.

GBUdb.hpp

 #pragma once
 
 #include "../CodeDweller/faults.hpp"
+
+#ifdef WIN32
+
+// Required because threading.hpp includes windows.h.
+#include <winsock2.h>
+
+#endif
+
 #include "../CodeDweller/threading.hpp"
 #include <cmath>
 #include <cctype>

SNFMulti.hpp

 #include <ctime>
 #include <string>
 #include "../CodeDweller/faults.hpp"
+
+#ifdef WIN32
+
+// Required because threading.hpp includes windows.h.
+#include <winsock2.h>
+
+#endif
+
 #include "../CodeDweller/threading.hpp"
 #include "GBUdb.hpp"
 #include "FilterChain.hpp"

snfGBUdbmgr.hpp

 
 #pragma once
 
+#ifdef WIN32
+
+// Required because threading.hpp includes windows.h.
+#include <winsock2.h>
+
+#endif
+
 #include "../CodeDweller/threading.hpp"
 #include "../CodeDweller/timing.hpp"
 #include "snfCFGmgr.hpp"

snfLOGmgr.hpp

 #include <cstdio>
 
 #include "../CodeDweller/timing.hpp"
+
+#ifdef WIN32
+
+// Required because threading.hpp includes windows.h.
+#include <winsock2.h>
+
+#endif
+
 #include "../CodeDweller/threading.hpp"
 #include "../CodeDweller/histogram.hpp"
 

snfXCImgr.hpp

 #include <string>
 #include <queue>
 #include "../CodeDweller/timing.hpp"
+
+#ifdef WIN32
+
+// Required because threading.hpp includes windows.h.
+#include <winsock2.h>
+
+#endif
+
 #include "../CodeDweller/threading.hpp"
 #include "../CodeDweller/networking.hpp"
 #include "snf_xci.hpp"