--- src/PTapi.c.orig	2013-12-13 02:12:02.000000000 +0900
+++ src/PTapi.c	2017-10-01 16:19:04.000000000 +0900
@@ -1896,7 +1896,7 @@
 |                                                                             |
 |  END_PROLOG                                                                 |
 -----------------------------------------------------------------------------*/
-int   
+hid_t   
 HE5_PTopenlevel(hid_t loc_id, const char *name, void *opdata)
 {
   int      i = 0;