Bug#851320: trilinos: FTBFS on single-CPU machines (not enough slots available)

[Santiago Vila]

Package: src:trilinos
Version: 12.10.1-2
Severity: serious

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
but it failed:

--------------------------------------------------------------------------------
[...]

841/842 Test #841: PikeBlackBox_transient_stepper_MPI_2 ...............................................***Failed 
   0.02 sec
--------------------------------------------------------------------------
There are not enough slots available in the system to satisfy the 2 slots
that were requested by the application:
  /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/packages/pike/blackbox/test/core/PikeBlackBox_transient_stepper.exe

Either request fewer slots for your application, or make more slots available
for use.
--------------------------------------------------------------------------


I have not tried to build this a second time, but I've seen this to
happen in other mpi related programs when being built on single-CPU
machines, so I'm going to assume this is essentially the same kind of error.

(i.e. if you need a full build logs, please just say so, but I guess
this should be easy to reproduce on any single-core machine, real or
virtual).

Thanks.