Hi Leo, On Mon, 01 Feb 2021 at 17:31, Leo Famulari <l...@famulari.name> wrote: > As previously discussed during the recent staging cycle, VTK is failing > to build, which in turn prevents FreeCAD from building:
[...] > Here's what I wrote during the staging cycle: > > ------ > For example, the vtk package is broken due to incompatibility with new > Freetype, which breaks FreeCAD. On #guix, Marius said "I looked into VTK > before the holidays; the Freetype issue is fixed in version 9, but that > has other problems, such as making it impossible to unbundle the dozens > of libraries that we are currently unbundling [...] it is possible to > backport the VTK commits that fix Freetype compatibility, but it will be > a lot of work and a huge patch (it was a major cleanup IIRC)." I'm > CC-ing Ekaitz Zarraga, who has been working on FreeCAD. I'm not sure > what we can do about this problem in the short term. Marius, can you > give more info about the bundling problem? > ------ > > Ultimately, it seems to be a compatibility issue, combined with > difficulty of "updating our way out of it". Maybe we should re-instate > the graft? I know it's icky to think that the graft was masking some > problem, but is it worse than not having the affected packages at all? > Were things actually not working while the graft was in place? What do > you think? > > [0] https://lists.gnu.org/archive/html/guix-devel/2021-01/msg00292.html Checking this for the next release (1.2.1) since it is something that an user from the scientific field could expect, “guix weather --display-missing” indicates that there is not substitute for vtk@6 but there is one for vtk@8. With commit 6bed29b and building locally with --check I get: /gnu/store/3lp7nisflgwv19ahs281z6bc233lpnhh-vtk-8.2.0 reproducibly. However, vtk@6 fails to build. The only package depending on vtk@6 is itk-snap. Maybe it is worth to try to build it with vtk@8 and remove vtk@6. I do not know. Cheers, simon
