If no HAVE_STD_SHARED_PTR or HAVE_BOOST_SHARED_PTR then set ptr_lib to ndnboost in the boost headers in this distribution.
diff --git a/boost/smart_ptr/detail/atomic_count_gcc.hpp b/boost/smart_ptr/detail/atomic_count_gcc.hpp
new file mode 100644
index 0000000..0d87bde
--- /dev/null
+++ b/boost/smart_ptr/detail/atomic_count_gcc.hpp
@@ -0,0 +1,72 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
+
+//
+// boost/detail/atomic_count_gcc.hpp
+//
+// atomic_count for GNU libstdc++ v3
+//
+// http://gcc.gnu.org/onlinedocs/porting/Thread-safety.html
+//
+// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+// Copyright (c) 2002 Lars Gullik Bjønnes <larsbj@lyx.org>
+// Copyright 2003-2005 Peter Dimov
+//
+// Distributed under 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)
+//
+
+#if __GNUC__ * 100 + __GNUC_MINOR__ >= 402
+# include <ext/atomicity.h>
+#else
+# include <bits/atomicity.h>
+#endif
+
+namespace ndnboost
+{
+
+namespace detail
+{
+
+#if defined(__GLIBCXX__) // g++ 3.4+
+
+using __gnu_cxx::__atomic_add;
+using __gnu_cxx::__exchange_and_add;
+
+#endif
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( long v ) : value_( v ) {}
+
+ long operator++()
+ {
+ return __exchange_and_add( &value_, +1 ) + 1;
+ }
+
+ long operator--()
+ {
+ return __exchange_and_add( &value_, -1 ) - 1;
+ }
+
+ operator long() const
+ {
+ return __exchange_and_add( &value_, 0 );
+ }
+
+private:
+
+ atomic_count(atomic_count const &);
+ atomic_count & operator=(atomic_count const &);
+
+ mutable _Atomic_word value_;
+};
+
+} // namespace detail
+
+} // namespace ndnboost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED