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# -*- shell-script -*-
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
# All rights reserved.
#
# This file is part of HDF5. The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the files COPYING and Copyright.html. COPYING can be found at the root
# of the source code distribution tree; Copyright.html can be found at the
# root level of an installed copy of the electronic HDF5 document set and
# is linked from the top-level documents page. It can also be found at
# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
# access to either file, you may request a copy from help@hdfgroup.org.
# This file should be sourced into configure if the compiler is the
# MPICH compiler script. It is careful not to do anything if the compiler
# is not MPICH.
# Check if mpicc can support complicated derived datatype correctly.
# We know that mpich 1.2.4 and 1.2.5 do not support it correctly. We assume
# older versions do not work either. We don't know of a way of testing its
# correctness without the risk of hanging the configure process. So, we
# set the configure variable hdf5_mpi_complex_derived_datatype_works to no.
# Notice that this code works only if the mpicc compiler shows its $MPIVERSION
# properly. It is confirmed mpicc does that as far back as v1.2.3.
# mpich2 do not support it correctly. But mpich2 reports small version number
# indistiguishable from mpich. Some mpich2 reports blank, some reports 1.0.2.
if [ -z "$hdf5_mpi_complex_derived_datatype_works" ]; then
ccversion=`$CC -v 2>/dev/null`
# mpich compiler will give "mpicc for 1.2.x ..."
if echo "$ccversion" | grep '^mpicc for' > /dev/null ; then
# $CC is an MPICH compiler. Grab the version numbers.
ccversion=`echo $ccversion | cut -f3 -d' '`
case "$ccversion" in
1.2.[0-5]*)
hdf5_mpi_complex_derived_datatype_works='no'
;;
1.0.2)
# mpich2 is recycling the version number, some report
# 1.0.2, some report blank.
hdf5_mpi_complex_derived_datatype_works='no'
;;
"")
# got blank ccversion. Assume it is bad a mpich2.
hdf5_mpi_complex_derived_datatype_works='no'
;;
*)
# assume okay
;;
esac
fi
fi
if [ -z "$hdf5_mpi_special_collective_io_works" ]; then
ccversion=`$CC -v 2>/dev/null`
# mpich compiler will give "mpicc for 1.2.x ..."
if echo "$ccversion" | grep '^mpicc for' > /dev/null ; then
# $CC is an MPICH compiler. Grab the version numbers.
ccversion=`echo $ccversion | cut -f3 -d' '`
case "$ccversion" in
1.2.[0-6]*)
hdf5_mpi_special_collective_io_works='no'
;;
1.0.2)
# mpich2 is recycling the version number, some report
# 1.0.2, some report blank.
hdf5_mpi_special_collective_io_works='no'
;;
"")
# got blank ccversion. Assume it is bad a mpich2.
hdf5_mpi_special_collective_io_works='no'
;;
*)
# assume okay
;;
esac
fi
fi
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