Fix define for use with Visual Studio.
// Tell 'em we actually want to do that, it's not an accident.
#if defined __GNUC__ || defined __clang__ || defined __MINGW32__ || defined __MINGW64__
#define FIX_UNUSED __attribute__((unused))
+#else
+ #define FIX_UNUSED
#endif
#define FIX_NOINLINE FIX_W32 FIX_UNUSED
