Mac OS X 10.5 (Leopard) gives a compile error if you try to perform an

operation on a const fd_set pointer.


[SVN r40546]

include/boost/asio/detail/posix_fd_set_adapter.hpp

@@ -59,7 +59,7 @@ public:
   }
 
 private:
-  fd_set fd_set_;
+  mutable fd_set fd_set_;
   socket_type max_descriptor_;
 };