From 649ddc95fbb184d31eaf359ba9fc3edf1f9b44b5 Mon Sep 17 00:00:00 2001
From: Ed Hartnett <edwardjameshartnett@gmail.com>
Date: Sun, 10 Mar 2019 09:49:57 -0600
Subject: [PATCH] fixed warning

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

diff --git a/src/clib/pioc.c b/src/clib/pioc.c
index cbc30581aaf..8c9cfe59627 100644
--- a/src/clib/pioc.c
+++ b/src/clib/pioc.c
@@ -1051,7 +1051,7 @@ int PIOc_set_hint(int iosysid, const char *hint, const char *hintval)
 
     /* Set the MPI hint. */
     if (ios->ioproc)
-        if ((mpierr = MPI_Info_set(ios->info, hint, hintval)))
+        if ((mpierr = MPI_Info_set(ios->info, (char *)hint, (char *)hintval)))
             return check_mpi2(ios, NULL, mpierr, __FILE__, __LINE__);
 
     return PIO_NOERR;