Re: [gentoo-user] And thus the emerge spake...

[Mick]

On Sunday 17 Apr 2016 11:44:50 Alan McKinnon wrote:
> On 17/04/2016 11:36, Meino.Cramer@×××.de wrote:
> > Alan McKinnon <alan.mckinnon@×××××.com> [16-04-17 11:08]:
> >> On 17/04/2016 05:45, Meino.Cramer@×××.de wrote:
> >>> Hi,
> >>>
> >>> ...and the novice was buffled and even the master shifted a little bit
> >>> after recognizing this words of the eternal being named emerge.
> >>> I know, that there is a difference in knowing the path and walking the
> >>> path, but it seems that I am not supposed to understand this:
> >>>
> >>>
> >>> These are the packages that would be merged, in reverse order:
> >>>
> >>> Calculating dependencies... done!
> >>>
> >>> Total: 0 packages, Size of downloads: 0 KiB
> >>>
> >>> WARNING: One or more updates/rebuilds have been skipped due to a
> >>> dependency conflict:
> >>>
> >>> dev-util/boost-build:0
> >>>
> >>>   (dev-util/boost-build-1.60.0:0/0::gentoo, ebuild scheduled for merge)
> >>>   conflicts with>>>
> >>>     =dev-util/boost-build-1.58* required by
> >>>     (dev-libs/boost-1.58.0-r1:0/1.58.0::gentoo, installed) ^
> >>>              ^^^^^
> >>>
> >>> !!! The following update has been skipped due to unsatisfied
> >>> dependencies:
> >>>
> >>> dev-libs/boost:0
> >>>
> >>> !!! All ebuilds that could satisfy "=dev-util/boost-build-1.60*" have
> >>> been masked. !!! One of the following masked packages is required to
> >>> complete your request: - dev-util/boost-build-1.60.0::gentoo (masked
> >>> by: )
> >>>
> >>>
> >>> For me it looks like boost not beeing updated/reinstalled because of
> >>> another version of boost, which depends on boost.
> >>>
> >>> HELP, I need somebody, HELP, not just anybody hee-eee-eelp uuuuuhhhh!
> >>>
> >>> Thanks for any HELP in advance! May the source be with you...
> >>> Best regards,
> >>> Meino
> >>
> >> Hah! That's one of those blockers that makes little or no sense.
> >>
> >>
> >> boost has this dep:
> >>
> >> DEPEND="${RDEPEND}
> >>
> >>         =dev-util/boost-build-${MAJOR_V}*"
> >>
> >> and boost-build does not depend on boost.
> >>
> >> So, logically you'd expect boost to want to upgrade to 1.60, notice
> >> boost-build's dep and upgrade boost-build as well to match. But it
> >> doesn't, because boost-build-1.60 is masked for <null> reason.
> >>
> >> It really looks and smells like a bug in emerge[1] when updating world
> >> where it considers boost-build first, fixes the version to use to match
> >> current boost, and then can't find a way to upgrade boost.
> >>
> >> Solution would seem to be to emerge -C either of them and let portage
> >> get on with it. Or upgrade just upgrade boost-build by itself then do
> >> world
> >>
> >>
> >> [1] I wouldn't go so far as to call it a "bug" as such, because nothing
> >> in the spec requires a package manager to guarantee that it will always
> >> find the best way to upgrade everything. It only needs to keep the
> >> system consistent with the ebuilds it has.
> >
> > Hi Alan,
> >
> > thanks for your reply! :)
> >
> > ...and I thought it was me being too limited to see the real truth
> > behind that what it is The Matrix.
> >
> > But it was only a deja-vu....oh wait! It was NO deja-vu ... no
> > glitch in The Matrix...we had similiar emerge-ncies in the past. ;)
> >
> > I will see how far I can go...I was warned to use 060 of boost...
> >
> > Best regards,
> > Meino
>
> It reminds me of many years back with two packages that depend on each
> other and portage couldn't deal with updating both at the same time.
>
> emerge -C got a lot of use back then :-)

Don't forget to use -1aDv when you emerge boost manually as Alan suggested, 
unless for some reason you want boost in your world file.

-- 
Regards,
Mick