Re: guix package -i kicad will fait with #error "Unsupported CPU architecture" on my Talos II

[Tobias Alexandra Platen <guix@platen-software.de>]

Confimed, it is working.


On Sun, 2024-12-01 at 15:50 +0200, Efraim Flashner wrote:
> On Sat, Nov 30, 2024 at 08:59:02PM +0000, Ian Eure wrote:
> > Hi Tobias,
> > 
> > On Sat, Nov 30, 2024, at 8:18 PM, Tobias Alexandra Platen wrote:
> > > When I try to install Kicad, I'll get the following output:
> > > 
> > > The following derivations will be built:
> > >   /gnu/store/5rinv8djwjz0bdami6nr6cm3zj382fsb-libcxi-1.0.1-
> > > 0.5b6f8b5.drv
> > >   /gnu/store/x26zsx3fw74vhfc35i79fansmlmhl0cc-libfabric-
> > > 1.22.0.drv
> > >   /gnu/store/nfj2qvhyxvfc7x5fkdlyg2z1wnpqw9cz-openmpi-4.1.6.drv
> > >   /gnu/store/l1rbmwj9m4kgkm1qada665mm0m6g10w1-libngspice-43.drv
> > >   /gnu/store/y88c48hzcm78ch39wjfa3dpdgw9n6m7r-webkitgtk-with-
> > > libsoup2-
> > > 2.44.1.drv
> > >   /gnu/store/qv0zpz8h2dvhbmxz6smsbmc763rdkdxm-wxwidgets-3.2.5.drv
> > >   /gnu/store/llydl3baxardzgf9xmdbgjikny68vaar-python-wxpython-
> > > 4.2.0.drv
> > >   /gnu/store/b0s2jgimknw6035kcqvpb6sdxkhakz7b-kicad-7.0.11.drv
> > >  
> > > After a few minutes the build fails with:
> > > 
> > > building /gnu/store/5rinv8djwjz0bdami6nr6cm3zj382fsb-libcxi-
> > > 1.0.1-
> > > 0.5b6f8b5.drv...
> > > \ 'build' phasebuilder for
> > > `/gnu/store/5rinv8djwjz0bdami6nr6cm3zj382fsb-libcxi-1.0.1-
> > > 0.5b6f8b5.drv' failed with exit code 1
> > > build of /gnu/store/5rinv8djwjz0bdami6nr6cm3zj382fsb-libcxi-
> > > 1.0.1-
> > > 0.5b6f8b5.drv failed
> > > View build log at
> > > '/var/log/guix/drvs/5r/inv8djwjz0bdami6nr6cm3zj382fsb-libcxi-
> > > 1.0.1-
> > > 0.5b6f8b5.drv.gz'.
> > > ........
> > > CC       utils/read_lat.o
> > > ........
> > > #error "Unsupported CPU architecture"
> > > 
> > > I also found a blogpost which mentions libcxi, what does libcxi
> > > do?
> > > https://hpc.guix.info/blog/2024/11/targeting-the-crayhpe-slingshot-interconnect/
> > > 
> > 
> > The package description provides a pretty good summary:
> > 
> >         Interface to the Cassini/Slingshot high-speed interconnect
> > 
> >         Libcxi provides applications with a low-level interface to
> > the
> >         Cray/HPE Cassini high-speed NIC (network interface
> > controller), also
> >         known as Slingshot.
> > 
> > > I guess that libcxi is optional for Kicad, so I could hack guix
> > > to
> > > build Kicad without libcxi.
> > > 
> > 
> > I think this is worth a bug report, and maybe you're also up to
> > sending some patches?  I think it's slightly more complicated than
> > just the kicad package, though, since libcxi isn't a direct
> > dependency:
> > 
> >         $ guix graph --path kicad libcxi
> >         kicad@7.0.11
> >         libngspice@43
> >         openmpi@4.1.6
> >         libfabric@1.22.0
> >         libcxi@1.0.1-0.5b6f8b5
> > 
> > So, I think what needs to happen is that libcxi needs to have
> > POWER9 removed from its supported-systems field; and libfabric
> > needs to conditionally include libcxi in its inputs based on
> > architecture.  I think the best way to do that is by checking for
> > the build system in (package-supported-systems libcxi), which will
> > avoid hardcoding duplicate arch tests in two packages.
> 
> I pushed a patch limiting cassini-headers (one of libcxi's
> dependencies)
> to the architectures it supports, and then I adjusted libfabric to
> check
> the transitive-supported-packages.  Kicad should now build again on
> ppc64le.
>