src/FileWin.cpp in gosu-1.3.0 vs src/FileWin.cpp in gosu-1.4.0

@@ -7,10 +7,10 @@
 #include <windows.h>
 using namespace std;
 
 // TODO: Error checking
 
-struct Gosu::File::Impl
+struct Gosu::File::Impl : Gosu::Noncopyable
 {
     HANDLE handle = INVALID_HANDLE_VALUE;
 
     ~Impl()
     {