From a69367c43b28e2e0029d42092e791415565fe804 Mon Sep 17 00:00:00 2001
From: Chip-Kerchner <chip.kerchner@ibm.com>
Date: Fri, 29 Sep 2023 09:29:41 -0500
Subject: [PATCH] Fix Makefile.system for OpenXL.

---
 Makefile.system | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Makefile.system b/Makefile.system
index ae6db40b0..af840f029 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -1170,6 +1170,8 @@ CCOMMON_OPT += -DF_INTERFACE_IBM
 FEXTRALIB += -lxlf90
 ifeq ($(C_COMPILER), GCC)
 FCOMMON_OPT += -qextname
+else ifeq ($(C_COMPILER), CLANG)
+FCOMMON_OPT += -qextname
 endif
 # FCOMMON_OPT	+= -qarch=440
 ifdef BINARY64