Re: [Boost-users] [boost::serialization] Cannot export any class[Re:Howto store derivedclasses through pointer to base ...]

Robert Ramey wrote:

I believe that the only time BOOST_CLASS_EXPORT (or something like it) should be necessary is when one serializes a derived class through an abstract pointer.  It has two functions.  First, it ensures that code which would not be otherwise instantiated is in fact instantiated. Second, it relates an externalizable text string to the type being serialized.

So I probably need to call it for the first reason (not for the second one). Any Idea why there's a link problem? BTW: The idea in my concept is, that you can only deserialize the correct object, which contains preinitialized instances, so that these instances know, what type they are, and how to deserialize. I'll probably post an example, when it all works.