mpi-config

#!/bin/bash

set -e

canonicalname(){
  if test $# -ne 1; then
     echo Usage: canonicalname path > /dev/stderr
     return 1
  fi
  readlink $1 || echo "$(dirname $1)/$(basename $1)"
}

canonicalpath(){
  if test $# -ne 1; then
     echo Usage: canonicalpath path > /dev/stderr
     return 1
  fi
  (cd $(dirname $(canonicalname $1)) && pwd)
}

version=0.1
verbose=0

usage()
{
  cat <<EOF
Usage: mpi-config [OPTIONS] [LIBRARIES]
Options:
 [--mpicc[=COMPILER]]
 [--disable-cxx]
 [--verbose]
 [--version]
 [--mpiversion]
 [--libs]
 [--cflags]

EOF
  exit $1
}

if test $# -eq 0 ; then
  usage 1 1>&2
fi

while test $# -gt 0 ; do
  case "$1" in
  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac

  case $1 in
  --mpicc=*)
    MPICC=$optarg
    ;;
  --version)
    echo $version
    exit 0
    ;;
  --verbose)
    verbose=1
    ;;
  --disable-cxx)
    disablecxx=yes
    ;;
  --mpiversion)
    tasks="$tasks print_mpiversion"
    ;;
  --cflags)
    tasks="$tasks print_cflags"
    ;;
  --libs)
    tasks="$tasks print_libs"
    ;;
  *)
    usage 1 1>&2
    ;;
  esac
  shift
done

if test x$MPICC = x ; then
  MPICC=mpicc
fi

#
# LIB
#
# load mpi-config.m4
#

eval "$(
m4 -I$(canonicalpath $0)/../m4/ <<EOF
changequote([, ])
define([AC_DEFUN],[define([\$1],[\$2])])
define([AC_MSG_CHECKING],[
  if test $verbose -gt 0; then
    echo -n "checking \$@..."
  fi
])
define([AC_MSG_RESULT],[
  if test $verbose -gt 0; then
    echo " \$@"
  fi
])
define([AC_MSG_NOTICE],[
  if test $verbose -gt 0; then
    echo "\$@"
  fi
])
define([AC_MSG_ERROR],[
  if test $verbose -gt 0; then
    echo "Error: \$@"
    exit 1
  fi
])
include([mpi-config.m4])
MPI_CONFIG_HELPER
EOF
)"

#
# output methods
#

print_mpiversion() {
  get_mpiparameters
  echo $MPI_VERSION
}

print_cflags() {
  get_mpiparameters
  if test x$disablecxx = xyes; then
    MPI_CPPFLAGS="$MPI_CPPFLAGS $MPI_NOCXXFLAGS"
  fi
  echo $MPI_CPPFLAGS
}

print_libs() {
  get_mpiparameters
  echo $MPI_LDFLAGS
}

for task in $tasks; do
  eval $task
done