--- mfhdf/test/tfile.c.orig	2020-03-04 02:40:50.000000000 +0900
+++ mfhdf/test/tfile.c	2020-11-22 06:03:34.000000000 +0900
@@ -14,6 +14,8 @@
 /* $Id: tfile.c 5218 2009-08-29 04:21:49Z bmribler $ */
 
 #include "mfhdf.h"
+#include "local_nc.h"
+extern intn make_datafilename(char*, char*, unsigned int );
 
 #ifdef HDF