Fix fcntl include in net.cpp & netbase.cpp

src/net.cpp

@@ -15,6 +15,10 @@
 #include <string.h>
 #endif
 
+#ifndef WIN32
+#include <fcntl.h>
+#endif
+
 #ifdef USE_UPNP
 #include <miniupnpc/miniwget.h>
 #include <miniupnpc/miniupnpc.h>

src/netbase.cpp

@@ -9,7 +9,7 @@
 #include "hash.h"
 
 #ifndef WIN32
-#include <sys/fcntl.h>
+#include <fcntl.h>
 #endif
 
 #include <boost/algorithm/string/case_conv.hpp> // for to_lower()