Dear, On Wed, 16 Sep 2020 at 13:58, Malte Frank Gerdes wrote: > it seems that FreeCAD fails to compile because it can't find the mpi > library even though it's in the inputs. Same is true for > python-pyside-2, python-pyside-2-tools and python-shiboken-2. [...] > MPI just generates a warning > > -- Checking for one of the modules 'ompi-cxx' > CMake Warning at CMakeLists.txt:745 (message): > mpi.h was not found. Check for error above. > > but the build fails with no direct error message (i didn't find one), > and tried to link against mpi (that's why i'm guessing it has something > to do with it). Thank you for your feedback and pointing this out. From the Guix Data Service [1], something wrong is happening to FreeCAD. The last substituable FreeCAD v1.8.0 is given by the commit 9bc516bada71e1437d73971584bff5e72e053dbe: guix time-machine –commit=9bc516bada71e1437d73971584bff5e72e053dbe \ -- weather freecad All the best, simon [1]