Fix building the channels test.

[meshlink] / src / meshlink_internal.h

diff --git a/src/meshlink_internal.h b/src/meshlink_internal.h
index 45c6c951be3697d0d6d1fd7508aa2d9798e8c5fe..a650083a337e14a177faac0beb6507cdcbafdb15 100644 (file)
--- a/src/meshlink_internal.h
+++ b/src/meshlink_internal.h
@@ -3,7 +3,7 @@
 
 /*
     meshlink_internal.h -- Internal parts of the public API.
-    Copyright (C) 2014, 2017 Guus Sliepen <guus@meshlink.io>
+    Copyright (C) 2014-2019 Guus Sliepen <guus@meshlink.io>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -20,6 +20,10 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#ifdef MESHLINK_H
+#error You must not include both meshlink.h and meshlink_internal.h!
+#endif
+
 #include "system.h"
 
 #include "event.h"