[buildd-tools-devel] Bug#403246: Bug#403246: #403246 not fixed as solution not used on buildds

[Roger Leigh]

On Mon, Feb 14, 2011 at 11:13:03PM +0100, Bernd Zeimetz wrote:
> Unfortunately the solution for #403246 is not enough as the aptitude resolver
> is not used on buildds. Please implement a proper dependency solution in the
> traditional solver.

Just to update you on what's happened:

- new release 0.61.0-1 adds the ability to disable (use first alternative
  only) or enable alternative build deps for the 'apt' and 'aptitude'
  resolvers.  It defaults to disabled; setting: $resolve_alternatives
- current git (0.61.1 prerelease) makes 'apt' the default resolver, and
  deprecates the old 'internal' resolver.
- I will shortly make $resolve_alternatives default to off for 'internal'
  and 'apt', and to on for 'aptitude'.  This will still be configurable,
  but will match the historical behaviour of all three resolvers.

We will hopefully soon switch to using 'apt' as the default resolver on
the buildds, because it is now identical to the internal resolver now it
uses first-only alternatives, and behaves identically.  Once all buildds
are using it, 'internal' will be obsoleted and subsequently deleted.

Following discussion on debian-devel and #debian-devel, the consensus
was to not allow alternative build dependencies when building for
unstable, due to the inconsistencies it can introduce to builds.  Note
that this does not include alternative architecture-specific
dependencies, which are allowed.  They will be allowed for experimental
with the aptitude resolver, and possibly backports.

So, in summary, the bug will be fixed, but it will in most cases not be
the default behaviour.  I think the solution we have ended up with is
about the best we can get, and if the default behaviour is not what you
want you will have the ability to alter it.


Regards,
Roger

-- 
  .''`.  Roger Leigh
 : :' :  Debian GNU/Linux             http://people.debian.org/~rleigh/
 `. `'   Printing on GNU/Linux?       http://gutenprint.sourceforge.net/
   `-    GPG Public Key: 0x25BFB848   Please GPG sign your mail.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature
URL: <http://lists.alioth.debian.org/pipermail/buildd-tools-devel/attachments/20110224/331931f0/attachment.pgp>