In common.h, define func_lib for function objects. In configure.ac, define HAVE_STD_FUNCTION and HAVE_BOOST_FUNCTION. Include function headers in ndnboost.
diff --git a/libs/function/test/function_test_fail2.cpp b/libs/function/test/function_test_fail2.cpp
new file mode 100644
index 0000000..634c04a
--- /dev/null
+++ b/libs/function/test/function_test_fail2.cpp
@@ -0,0 +1,27 @@
+// Boost.Function library
+
+// Copyright (C) Douglas Gregor 2001-2005. Use, modification and
+// distribution is subject to the Boost Software License, Version
+// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// For more information, see http://www.boost.org
+
+#include <boost/test/minimal.hpp>
+#include <boost/function.hpp>
+
+using namespace std;
+using namespace ndnboost;
+
+static int bad_fn(float f) { return static_cast<int>(f); }
+
+int
+test_main(int, char*[])
+{
+ function0<int> f1;
+ f1 = bad_fn;
+
+ BOOST_ERROR("This should not have compiled.");
+
+ return 0;
+}