Re: [gentoo-user] Kicad and complications from hdf5 and vtk USE flags. Not package specific tho.

[Miles Malone]

Well I just installed kicad-meta (6.0.1), and neither vtk nor hdf5 are
pulled into the dep tree as a result...  Given opencascade[vtk] is
what's pulling in vtk in your emerge above, disabling the vtk
useflag's probably going to help.

In addition, I cant imagine why in a million years MPI should be
getting pulled in unless you've explicitly enabled it somewhere else,
MPI's hardly something you'd be using if you werent USING, i.e. on a
distributed memory system.  Looking at the dependency tree, the most
likely place for an MPI use flag to be causing all kinds of mpi
related shenanigans with other packages is Boost.  If you've enabled
MPI for Boost without actually needing it, that'll cause all kinds of
tree problems.  In my experience if you're using MPI you need to be
really really careful about enabling it globally, it's incredibly hard
for the devs to test given test systems are rarely clusters, so it's
often got significant breakage. Of course if you're developing for a
cluster, which I do from time to time, this can be a pain.

So assuming you've got *absolutely no libraries* in your world file
(there really shouldnt be), make sure you've got mpi and vtk disabled
globally, and not per-package enabled for boost and opencascade.  Get
rid of vtk and hdf5, and try again? (Assuming you dont need hdf5 for
something other than kicad that is, of course. It's the main format I
use for data storage as it plays nicely with Matlab and okay with c++
and python)

That's my best guess as to what's causing your blockers, anyways.
Give it a go and see where the error moves to

On Thu, 17 Feb 2022 at 16:09, Dale <rdalek1967@×××××.com> wrote:
>
> Miles Malone wrote:
> > Hi Dale,
> >
> > Try removing the vtk useflag from opencascade.  Also, add verbose to
> > your emerge arguments and it may show you the full RDEPEND
> >
> > Regards,
> >
> > Miles
> >
> >
>
> I already have -v in my make.conf defaults.  So it is already there I
> just don't have to type it.  I tried a huge number of options before
> getting this close.  Sometimes I'd have a dozen packages complaining
> about USE flags or other issues.  This is the new output but it looks
> the same to me.
>
>
> root@fireball / # emerge -auDN world
>
> These are the packages that would be merged, in order:
>
> Calculating dependencies... done!
>
> The following USE changes are necessary to proceed:
>  (see "package.use" in the portage(5) man page for more details)
> # required by sci-libs/vtk-9.0.3-r4::gentoo
> # required by sci-libs/opencascade-7.5.2-r5::gentoo
> # required by sci-electronics/kicad-5.1.12-r2::gentoo
> # required by sci-electronics/kicad-symbols-5.1.12::gentoo
> # required by sci-electronics/kicad-meta-5.1.12::gentoo
> # required by @selected
> # required by @world (argument)
> =sci-libs/hdf5-1.10.5-r1 mpi
> #
> >=sci-libs/vtk-9.0.3-r4 -mpi
>
> Would you like to add these changes to your config files? [Yes/No] n
> root@fireball / #
>
>
> Open to ideas?  Maybe I'm catching the tree in a bad state or
> something.  I don't recall ever seeing something like this.
>
> This is the complete emerge command from emerge.log.
>
>
> emerge --newuse --oneshot --unordered-display --update --ask
> --backtrack=100 --deep --keep-going --with-bdeps=y --quiet-build=n
> --regex-search-auto=y --verbose world
>
>
> Dale
>
> :-)  :-)
>