From e5806e676b5695f258b3972009caba5a414c5d0a Mon Sep 17 00:00:00 2001
From: Pablo de Oliveira Castro <pablo@sifflez.org>
Date: Fri, 23 Jul 2021 09:02:25 +0200
Subject: [PATCH] Make sure qmckl.h can be imported from C++ (#26)

When qmckl.h is included in a C++ file wrap the definitions in
an extern "C" block to avoid mangling.
---
 tools/build_qmckl_h.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/build_qmckl_h.sh b/tools/build_qmckl_h.sh
index 6365689..3ddeada 100755
--- a/tools/build_qmckl_h.sh
+++ b/tools/build_qmckl_h.sh
@@ -85,6 +85,10 @@ cat << EOF > ${OUTPUT}
 #ifndef __QMCKL_H__
 #define __QMCKL_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdbool.h>
@@ -100,6 +104,9 @@ do
 done
 
 cat << EOF >> ${OUTPUT}
+#ifdef __cplusplus
+}
+#endif
 #endif
 EOF