Boost.Serialization is currently failing to build in Comeau 4.3.3, apparently for legitimate reasons: http://tinyurl.com/adv2g The detail type helper_type in libs/serialization/src/basic_oarchive.cpp contains the following member: const boost::serialization::extended_type_info * const m_eti; whose constness prevents the compiler from generating a default assignment operator for helper_type. Hence helper_type is not Assignable and thus cannot be used in a STL container like attempted at line 164 in the same archive: std::set<helper_type, helper_compare> m_helpers; I guess removing the const qualifier of m_eti would suffice to make this error go away. Any objection to me applying the attached patch (confirmed to work on MSVC, yet untested in Comeau)? Joaquín M López Muñoz Telefónica, Investigación y Desarrollo 143c143 < const boost::serialization::extended_type_info * const m_eti; ---
const boost::serialization::extended_type_info * m_eti;
146c146 < const boost::serialization::extended_type_info * const eti ---
const boost::serialization::extended_type_info * eti