Fixed compiling with mingw64
diff --git a/include/SDL_platform.h b/include/SDL_platform.h
index ace93a4..37647c4 100644
--- a/include/SDL_platform.h
+++ b/include/SDL_platform.h
@@ -116,22 +116,20 @@
#if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
/* Try to find out if we're compiling for WinRT or non-WinRT */
-#if defined(_MSC_VER) && (_MSC_VER >= 1700) /* _MSC_VER==1700 for MSVC 2012 */
+#if defined(__MINGW32__) || (defined(_MSC_VER) && (_MSC_VER >= 1700)) /* _MSC_VER==1700 for MSVC 2012 */
#include <winapifamily.h>
-#endif /* _MSC_VER >= 1700 */
-/* Default to classic, Win32/Win64/Desktop compilation either if:
- 1. the version of Windows is explicity set to a 'Desktop' (non-Metro) app
- 2. the version of Windows cannot be determined via winapifamily.h
- If neither is true, then see if we're compiling for WinRT.
- */
-#if ! defined(WINAPI_FAMILY_PARTITION) || WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#undef __WINDOWS__
#define __WINDOWS__ 1
/* See if we're compiling for WinRT: */
#elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
#undef __WINRT__
#define __WINRT__ 1
-#endif /* ! defined(WINAPI_FAMILY_PARTITION) */
+#endif
+#else
+#undef __WINDOWS__
+#define __WINDOWS__ 1
+#endif /* _MSC_VER < 1700 */
#endif /* defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) */
#if defined(__WINDOWS__)