Index: src/os_unix.c
==================================================================
--- src/os_unix.c
+++ src/os_unix.c
@@ -675,11 +675,13 @@
   case EINVAL:
   case ENOTCONN:
   case ENODEV:
   case ENXIO:
   case ENOENT:
+#ifdef ESTALE                     /* ESTALE is not defined on Interix systems */
   case ESTALE:
+#endif
   case ENOSYS:
     /* these should force the client to close the file and reconnect */
     
   default: 
     return sqliteIOErr;