Hi Phil.
> Pertinent part of log from the 'sbuild'. Will pastebin it to retain > formatting. > > https://paste.debian.net/1322964/ The failure seems to be when PETSc calls MPI_Init(): mca_base_component_repository_open: unable to open mca_pmix_ext3x: libpmix.so.2: cannot open shared object file: No such file or directory (ignored) Maybe this error is related with this? https://forums.debian.net/viewtopic.php?t=156059 I've never seen that error before and I haven't encountered any prior reference to mca nor libpmix when running feenox on stable. I am going to need some help about where this build step is run so I can try to understand how I can fix it. Do I need to set libpmix as an explicit dependency? Any comment is welcome. Thanks -- jeremy