Bug#1102465: petsc: PETSc was configured with one MPICH/Open MPI mpi.h version but now appears to be compiling using an older version

[Drew Parsons]

On 2026-10-23 08:06, Andreas Tille wrote:
> Hi,
> 
> Am Mon, Oct 05, 2026 at 03:21:01AM +0300 schrieb Adrian Bunk:
>> > https://gitlab.com/petsc/petsc/-/work_items/1881
>> 
>> Since we are hitting the problem again, could you add something like 
>> the
>> attached patch?
> 
> Thank you Adrian for the patch.
> 
> I wonder whether we could circumvent this kind of trouble by adding
> architecture-is-64-bit to Build-Depends.  This would mean we need to
> ask for removal of quite a number of binary packages, thought.  But
> in the end I think this is no practical restriction for our users
> and we might get rid of some maintenance burden.

Removing PETSc completely from 32-bit arches is a bit extreme,  I think.
The problem goes away with the patch.

Drew