Why shared libraries have version numbers (was: the sorry saga ...)

[Volker Lendecke]

On Tue, Jul 07, 2009 at 10:42:02AM -0400, David Collier-Brown wrote:
>   The purpose of shared library version numbers is to allow
> controlled, continuous change.  The implementer of
> the called functions produces a new implementation with
> some changed APIs or ABIs, but the consumers of the
> old API/ABI continue to work without change. 

How do you cope with a program that requires version .2 that
also links in a library that requires version .1?

Volker
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