Re: [gentoo-dev] About forcing rebuilds of other packages issue

[Pacho Ramos]

El mar, 05-06-2012 a las 16:07 -0700, Zac Medico escribió:
> On 06/05/2012 06:31 AM, Pacho Ramos wrote:
> > El mar, 05-06-2012 a las 08:44 -0400, Aaron W. Swenson escribió:
> >> The ideal solution is for the Ebuild to instruct the PMS to rebuild
> >> the dependent packages.
> >>
> >> We can have a variable called REBUILD. All packages that would need to
> >> be rebuilt can be listed in it. Only those packages that are installed
> >> would be built. The actual list of the packages to be rebuilt would be
> >> determined at dependency checking time. That way, the user can approve
> >> the rebuild of the packages.
> >
> > We all know what would be the "ideal solution", the problem is how to
> > implement it (and how many years we need to wait to get it working).
>
> This REBUILD variable is the first idea that pops into the head of
> anyone who's never worked on a dependency resolver before. It's
> backwards because it requires a package to have knowledge of *all* of
> its reverse dependencies, and it should not need to know about *any* of
> them.
>
> The "SLOT operator" dependencies that Ciaran has been advocating are
> very close to a good solution. However, if we want it to work with
> unslotted packages, then we need to introduce a separate ABI_SLOT
> variable as discussed here:
>
>   https://bugs.gentoo.org/show_bug.cgi?id=192319#c18
>
> It's really no more difficult to do than "SLOT operator" dependencies,
> it's more flexible, and we can do it in EAPI 5.

In that case, I obviously wouldn't have any problem with that approach
(it sound even better :)). Is there any place where I could get a bit
more documentation about how this "SLOT operator" way would work? For
example, how would work for rebuilding x11 drivers after updating xorg
or rebuilding gobject-introspection after major glib update... 

Thanks a lot for the info :)