Hi Santiago On 2 September 2018 at 19:21, Santiago Vila <sanv...@debian.org> wrote: > My guess is that this is a bug in p4est but it's triggered by a build depends > which changed behaviour somewhere between 2017-12-24 (where version 1.1-5 > still built ok for me in buster) and 2018-06-03 (where it did not anymore).
Yes, openmpi flipped the default for oversubscription *again*, see #849974. Would you please check whether the following change to debian/rules fixes it for you? --- a/debian/rules +++ b/debian/rules @@ -3,6 +3,7 @@ include /usr/share/dpkg/pkg-info.mk export OMPI_MCA_plm_rsh_agent=/bin/false +export OMPI_MCA_rmaps_base_oversubscribe=1 %: dh $@ Regards Graham