dnl Copyright (C) 2007-2013  CEA/DEN, EDF R&D, OPEN CASCADE
dnl
dnl Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
dnl CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
dnl
dnl This library is free software; you can redistribute it and/or
dnl modify it under the terms of the GNU Lesser General Public
dnl License as published by the Free Software Foundation; either
dnl version 2.1 of the License.
dnl
dnl This library is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
dnl Lesser General Public License for more details.
dnl
dnl You should have received a copy of the GNU Lesser General Public
dnl License along with this library; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
dnl
dnl See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
dnl

AC_DEFUN([CHECK_MPICH],[

AC_REQUIRE([AC_PROG_CC])dnl

AC_ARG_WITH(mpich,
  [AC_HELP_STRING([--with-mpich=DIR],[root directory path of MPICH installation])],
  WITHMPICH="yes",WITHMPICH="no")

MPI_INCLUDES=""
MPI_LIBS=""
if test "$WITHMPICH" = yes; then

  MPIREQUESTED="yes"
  echo
  echo ---------------------------------------------
  echo testing mpich
  echo ---------------------------------------------
  echo
  MPICH_HOME=$withval

  if test "$MPICH_HOME"; then
    MPI_INCLUDES="-I$MPICH_HOME/include"
    if test "x$MPICH_HOME" = "x/usr"
    then
      MPI_LIBS="-lmpichcxx -lmpich -lopa -lmpl -lrt -lpthread"
    else
      MPI_LIBS="-L$MPICH_HOME/lib -lmpichcxx -lmpich -lopa -lmpl -lrt -lpthread"
    fi
  fi

  CPPFLAGS_old="$CPPFLAGS"
  CPPFLAGS="$MPI_INCLUDES $CPPFLAGS"
  AC_CHECK_HEADER(mpi.h,WITHMPICH="yes",WITHMPICH="no")
  CPPFLAGS="$CPPFLAGS_old"

  LIBS_old="$LIBS"
  LIBS="$MPI_LIBS $LIBS"
  AC_CHECK_LIB(mpich,MPI_Init,WITHMPICH="yes",WITHMPICH="no")
  AC_CHECK_LIB(mpich,MPI_Publish_name,WITHMPI2="yes",WITHMPI2="no")
  LIBS="$LIBS_old"

  AC_MSG_CHECKING(for mpich)
  if test "$WITHMPICH" = "yes";then
     mpi_ok=yes
     mpi2_ok=$WITHMPI2
     WITHMPI="yes"
     CPPFLAGS="-DWITHMPICH $CPPFLAGS"
     AC_MSG_RESULT(yes)
  else
     mpi_ok=no
     mpi2_ok=no
     WITHMPI=no
     AC_MSG_RESULT(no)
  fi

fi

])dnl