build: suppress CryptoPP warnings

Change-Id: I52e93fb18c42cf72d73c4477dc4a8093a5221215
diff --git a/src/security/cryptopp.hpp b/src/security/cryptopp.hpp
new file mode 100644
index 0000000..f22b87e
--- /dev/null
+++ b/src/security/cryptopp.hpp
@@ -0,0 +1,27 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/**
+ * Copyright (C) 2013 Regents of the University of California.
+ * See COPYING for copyright and distribution information.
+ */
+
+#ifndef NDN_SECURITY_CRYPTOPP_HPP
+#define NDN_SECURITY_CRYPTOPP_HPP
+
+// suppress CryptoPP warnings
+#pragma GCC system_header
+#pragma clang system_header
+
+#include <cryptopp/asn.h>
+#include <cryptopp/base64.h>
+#include <cryptopp/des.h>
+#include <cryptopp/files.h>
+#include <cryptopp/filters.h>
+#include <cryptopp/hex.h>
+#include <cryptopp/modes.h>
+#include <cryptopp/osrng.h>
+#include <cryptopp/pssr.h>
+#include <cryptopp/pwdbased.h>
+#include <cryptopp/rsa.h>
+#include <cryptopp/sha.h>
+
+#endif // NDN_SECURITY_CRYPTOPP_HPP