Bug#1059133: dogecoin: FTBFS: error: invalid ‘static_cast’ from type ‘boost::detail::function::function_buffer_members::obj_ptr_t’ {aka ‘void*’} to type ‘void (*)(bool, const CBlockIndex*)’

[Chad Jacob Milios]

Please see https://github.com/boostorg/function/pull/47 and let us know if that 
minor modification helps you out.