From 1e5af53a425162fe83e0e01385213f5c64eecdb0 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Thu, 30 Jul 2020 10:25:46 +0200
Subject: Add include guards to version headers

---
 src/version.c.in | 4 ++++
 src/version.h    | 3 +++
 2 files changed, 7 insertions(+)

(limited to 'src')

diff --git a/src/version.c.in b/src/version.c.in
index bf2fddee..86315801 100644
--- a/src/version.c.in
+++ b/src/version.c.in
@@ -1,3 +1,7 @@
+/* Prevent subsequent inclusion of version.h
+ * (e.g. in the case of Meson unity build mode) */
+#define CRYSTFEL_VERSION_H
+
 const char *crystfel_version_string()
 {
 	return "@VCS_TAG@";
diff --git a/src/version.h b/src/version.h
index 0ecac74a..e31c4c17 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,2 +1,5 @@
+#ifndef CRYSTFEL_VERSION_H
+#define CRYSTFEL_VERSION_H
 extern const char *crystfel_version_string(void);
 extern const char *crystfel_licence_string(void);
+#endif
-- 
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