Index: sources/canbus/frameinterface.h
===================================================================
diff -u -rbb8f39a014644c70b832dd2a784f62fa9f6b6106 -rd3f916066c2d10c10fffa91fd8a7e5ac6dd86c7d
--- sources/canbus/frameinterface.h	(.../frameinterface.h)	(revision bb8f39a014644c70b832dd2a784f62fa9f6b6106)
+++ sources/canbus/frameinterface.h	(.../frameinterface.h)	(revision d3f916066c2d10c10fffa91fd8a7e5ac6dd86c7d)
@@ -27,6 +27,7 @@
 // forward declarations
 class tst_canbus;
 class tst_acknow;
+class tst_initializations;
 
 // namespace
 namespace Can {
@@ -45,6 +46,7 @@
     // friends
     friend class ::tst_canbus;
     friend class ::tst_acknow;
+    friend class ::tst_initializations;
 
     /*!
      * \brief   The ChannelGroup enum