--- os.h.orig	2006-04-22 03:53:06.000000000 +0200
+++ os.h	2006-07-26 21:22:24.000516000 +0200
@@ -38,7 +38,11 @@
 #include <io.h>
 #include <fcntl.h>
 
+/* Checking the architecture we are compiling for */
 #define PLATFORM "Win32"
+#ifdef _WIN64
+# define PLATFORM "Win64"
+#endif
 
 /* going away shortly... */
 #define HAVE_DRIVE_LETTERS