security: code cleanup and doxygen improvements in tpm::BackEndOsx
Change-Id: I6d6d77ab315a10c280e7643d4cec5269ed10fe5e
diff --git a/src/security/tpm/key-ref-osx.hpp b/src/security/tpm/key-ref-osx.hpp
index 02ed524..b901ea3 100644
--- a/src/security/tpm/key-ref-osx.hpp
+++ b/src/security/tpm/key-ref-osx.hpp
@@ -1,6 +1,6 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2013-2017 Regents of the University of California.
+/*
+ * Copyright (c) 2013-2018 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
@@ -22,6 +22,12 @@
#ifndef NDN_SECURITY_TPM_KEY_REF_OSX_HPP
#define NDN_SECURITY_TPM_KEY_REF_OSX_HPP
+#include "../../common.hpp"
+
+#ifndef NDN_CXX_HAVE_OSX_FRAMEWORKS
+#error "This file should not be compiled ..."
+#endif
+
#include "../../util/cf-releaser-osx.hpp"
#include <Security/Security.h>