dnl Copyright (C) 2006-2021  CEA/DEN, EDF R&D
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, or (at your option) any later version.
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

# Check availability of Salome's KERNEL binary distribution
#
# Author : Jerome Roy (CEA, 2003)
#

AC_DEFUN([CHECK_KERNEL],[

AC_CHECKING(for Kernel)

Kernel_ok=no

AC_ARG_WITH(kernel,
            [  --with-kernel=DIR               root directory path of KERNEL build or installation],
            KERNEL_DIR="$withval",KERNEL_DIR="")

if test "x$KERNEL_DIR" = "x" ; then

# no --with-kernel-dir option used

   if test "x$KERNEL_ROOT_DIR" != "x" ; then

    # KERNEL_ROOT_DIR environment variable defined
      KERNEL_DIR=$KERNEL_ROOT_DIR

   else

    # search Kernel binaries in PATH variable
      AC_PATH_PROG(TEMP, runSalome.py)
      if test "x$TEMP" != "x" ; then
         KERNEL_BIN_DIR=`dirname $TEMP`
         KERNEL_DIR=`dirname $KERNEL_BIN_DIR`
      fi

   fi
#
fi

if test -f ${KERNEL_DIR}/bin/salome/runSalome.py ; then
   Kernel_ok=yes
   AC_MSG_RESULT(Using Kernel module distribution in ${KERNEL_DIR})

   if test "x$KERNEL_ROOT_DIR" = "x" ; then
      KERNEL_ROOT_DIR=${KERNEL_DIR}
   fi
   if test "x$KERNEL_SITE_DIR" = "x" ; then
      KERNEL_SITE_DIR=${KERNEL_ROOT_DIR}
   fi
   AC_SUBST(KERNEL_ROOT_DIR)
   AC_SUBST(KERNEL_SITE_DIR)

else
   AC_MSG_WARN("Cannot find compiled Kernel module distribution")
fi

AC_MSG_RESULT(for Kernel: $Kernel_ok)

])dnl