From e94ed99c5bf7c4ae5df56f75606ef1b486e16bb2 Mon Sep 17 00:00:00 2001
From: Allen Byrne <byrn@hdfgroup.org>
Date: Wed, 20 Dec 2017 14:24:57 -0600
Subject: Add HD prefix

---
 src/H5system.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/H5system.c b/src/H5system.c
index 7b3a0eb..719b7e0 100644
--- a/src/H5system.c
+++ b/src/H5system.c
@@ -1043,7 +1043,7 @@ H5_build_extpath(const char *name, char **extpath /*out*/)
          * Unix: does not apply
          */
         if(H5_CHECK_ABS_DRIVE(name)) {
-            drive = toupper(name[0]) - 'A' + 1;
+            drive = HDtoupper(name[0]) - 'A' + 1;
             retcwd = HDgetdcwd(drive, cwdpath, MAX_PATH_LEN);
             HDstrncpy(new_name, &name[2], name_len);
         } /* end if */
-- 
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