#!/bin/sh

set -e

if [ "$1" = "configure" ]; then

if update-alternatives --list mpiexec >/dev/null 2>&1; then
    # OK, that case sucks. Apparently, we still have a mpiexec alternative, maybe
    # from a different package (like openmpi). In that case, the only thing we
    # can do is --remove-all...
    update-alternatives --remove-all mpiexec
fi

update-alternatives \
	--install /usr/bin/mpicc mpi /usr/bin/mpicc.mpich 40 \
	--slave /usr/bin/mpic++ mpic++ /usr/bin/mpicxx.mpich \
	--slave /usr/bin/mpicxx mpicxx /usr/bin/mpicxx.mpich \
	--slave /usr/bin/mpiCC mpiCC /usr/bin/mpicxx.mpich \
	--slave /usr/bin/mpifort mpifort /usr/bin/mpifort.mpich \
	--slave /usr/bin/mpif77 mpif77 /usr/bin/mpifort.mpich \
	--slave /usr/bin/mpif90 mpif90 /usr/bin/mpifort.mpich \

update-alternatives \
	--install /usr/bin/mpirun mpirun /usr/bin/mpirun.mpich 40 \
	--slave /usr/bin/mpiexec mpiexec /usr/bin/mpiexec.mpich \

fi