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Re: Transition time: KDE, JACK, arts, sablotron, unixodbc, net-snmp, php, ...



On Mon, Oct 31, 2005 at 02:54:49PM -0500, Nathanael Nerode wrote:
> The enormous ABI transitions have been particularly hard, of course.  If
> we can avoid ABI-breaking transitions in the future it would help.  :-)

Wholly unrealistic.  Libraries *do* undergo ABI changes; there are only a
handful of library upstreams who know how to write a library interface
that's proofed against future design decisions, and in most cases it's not
worth the effort to try to write libs this way -- and it wouldn't save us
from C++ ABI changes anyway.

> I think making a queue for transitions, so that they're basically one at a
> time, would solve most remaining problems.

Doesn't work when lib maintainers don't coordinate.

A better option is to make britney more resilient in dealing with library
transitions by keeping old binary packages around in testing instead of
requiring them to be removed at the same time as the new version enters,
which removes the need for all packages to be ready to enter testing at the
same time.  This has been on the TODO list since it was discussed this past
March in Vancouver, and is currently the top item on Anthony Towns' britney
hacking list at <http://www.erisian.com.au/market/>.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
vorlon@debian.org                                   http://www.debian.org/

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