[boost] warnings in Boost.Serialization

Due to templates warnings in Boost tend to create a lot of noise. As we try to maintain a 'no warnings' policy, it would be great if the following 'issues' could be fixed (otherwise I have to maintain a modified Boost around here) (Boost version 1.34.1) Serialization produces (in release builds) the following warnings (as the variables are only used in asserts or #ifdefs): basic_binary_oprimitive.hpp:87: warning: unused variable 'i' basic_binary_iprimitive.hpp:87: warning: unused variable 'i' shared_ptr.hpp:196: warning: unused variable 'file_version' (a trivial way to fix this would be: (void) i; is that ok? 'cause that is basically what I am using (inside a macro).) Best regards Christoph