Include bind in ndnboost.
diff --git a/ndnboost/function/gen_function_N.pl b/ndnboost/function/gen_function_N.pl
new file mode 100644
index 0000000..7fc53c9
--- /dev/null
+++ b/ndnboost/function/gen_function_N.pl
@@ -0,0 +1,26 @@
+#!/usr/bin/perl -w
+#
+# Boost.Function library
+#
+# Copyright Douglas Gregor 2001-2003. 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
+use English;
+
+if ($#ARGV < 0) {
+  print "Usage: perl gen_function_N <number of arguments>\n";
+  exit;
+}
+
+
+$totalNumArgs = $ARGV[0];
+for ($numArgs = 0; $numArgs <= $totalNumArgs; ++$numArgs) {
+  open OUT, ">function$numArgs.hpp";
+  print OUT "#define BOOST_FUNCTION_NUM_ARGS $numArgs\n";
+  print OUT "#include <ndnboost/function/detail/maybe_include.hpp>\n";
+  print OUT "#undef BOOST_FUNCTION_NUM_ARGS\n";
+  close OUT;
+}