Bug#1076234: lammps: FTBFS with mpich as default MPI provider on armel, armhf: Fatal error in internal_Comm_set_errhandler: Invalid communicator

[Sebastian Ramacher]

Source: lammps
Version: 20240207+dfsg-1.1
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)
X-Debbugs-Cc: sramacher at debian.org

https://buildd.debian.org/status/fetch.php?pkg=lammps&arch=armel&ver=20240207%2Bdfsg-1.1%2Bb4&stamp=1720745050&raw=0

LD_LIBRARY_PATH=/<<PKGBUILDDIR>>/debian/tmp/usr/lib/arm-linux-gnueabi \
  PYTHONPATH=/<<PKGBUILDDIR>>/debian/python3-lammps/usr/lib/python3.12/dist-packages:${PYTHONPATH} \
  python3 demo.py
ERROR: ld.so: object 'libfakeroot-sysv.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Fatal error in internal_Comm_set_errhandler: Invalid communicator, error stack:
internal_Comm_set_errhandler(41812): MPI_Comm_set_errhandler(comm=0xee8f6b74, errh=0xee8f7718) failed
internal_Comm_set_errhandler(41770): Invalid communicator
[unset]: PMIU_write error; fd=-1 buf=:cmd=abort exitcode=336162565 message=Fatal error in internal_Comm_set_errhandler: Invalid communicator, error stack:
internal_Comm_set_errhandler(41812): MPI_Comm_set_errhandler(comm=0xee8f6b74, errh=0xee8f7718) failed
internal_Comm_set_errhandler(41770): Invalid communicator
:
system msg for write_line failure : Bad file descriptor
make[1]: *** [debian/rules:131: execute_before_dh_python3-arch] Error 5
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:13: binary-arch] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary-arch subprocess returned exit status 2

Cheers
-- 
Sebastian Ramacher