Share object (libstdc++) - Software release question.

[Martin v. Loewis]

>   I build a shared object which is dynamiclly linked with libc++.so.2.8.1.
> Now I give this shared object to a customer, say the customer has a higher 
> version of libc++.so.2.9.xx.
> What have I got to do?
> Ask the customer install the old libc++.so.2.8.1?
> or I build another shared object linked with libc++.so.2.9.xx just for this 
> customer.
> What is a better way than both of above?

Both approaches solve your problem, and nothing else would work.

If that is an option, I'd recommend to upgrade to the current version
of gcc, which is 2.95.2; that comes with libstdc++ 2.10. It is
possible that other customers of you will also find a need to install
gcc 2.95.x over time, in which case you'd be prepared to respond.

Regards,
Martin