getfreediskspace now checks _ANONYMOUS_STRUCT for Win32 LARGE_INTEGER...

getfreediskspace now checks _ANONYMOUS_STRUCT for Win32 LARGE_INTEGER High/LowPart member names (needed for CygWin/winnt.h compatiblity).

src/sbbs3/wrappers.c

@@ -338,11 +338,18 @@ ulong DLLCALL getfreediskspace(char* path)
 			&size,		// receives the number of bytes on disk
 			NULL))		// receives the free bytes on disk
 			return(0);
-
+#ifdef _ANONYMOUS_STRUCT
+		if(avail.HighPart)
+#else
 		if(avail.u.HighPart)
+#endif
 			return(~0);	/* 4GB max */
 
+#ifdef _ANONYMOUS_STRUCT
+		return(avail.LowPart);
+#else
 		return(avail.u.LowPart);
+#endif
 	}
 
 	/* Windows 95 (old way), limited to 2GB */