Fixed compilation with latest mingw64

JGE/include/JSocket.h

@@ -42,9 +42,9 @@ private:
   // convert the socket into non-blocking state
   bool SetNonBlocking(int sock);
   // socket handle
-#ifdef WIN32
+#if (defined WIN32) && (!defined __GNUG__)
   SOCKET mfd;
-#elif LINUX || PSP
+#elif LINUX || PSP || __GNUG__
   int mfd;
 #endif
 };

JGE/include/JTypes.h

@@ -112,6 +112,7 @@ enum {
 #endif // CONSOLE_CONFIG
 
 #if (defined WIN32) && (!defined LINUX)
+	#define WIN32_LEAN_AND_MEAN
 	#include <windows.h>
 #endif
 #if defined(LINUX) && (!defined WIN32) || defined(IOS) || defined (ANDROID)