Re: libtool versioning and ABI

[Bob Friesenhahn]

On Wed, 5 Aug 2009, Joseph Garvin wrote:
> ... But that still doesn't make sense. If I only add (don't remove functions
> or change existing signatures) to my interfaces, I still bump the current
> number according to that rule. But adding to an interface doesn't
> necessarily break ABI. So if current-bumps indicate ABI changes, I'm telling
> people ABI has broken when it actually hasn't. I don't understand.

If you only add new interfaces while preserving existing interfaces 
then you should increment 'current' as well as 'age'.  This indicates 
that you support version 'current' as well older ones spanning. 
'current-age'.

Bob
--
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/