dnl Copyright (C) 2007-2012  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_TBB],[
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl

AC_CHECKING(for TBB)

AC_ARG_WITH(TBB,
    [  --with-TBB=DIR                 root directory path to TBB installation ],
    [TBBHOME="$withval"
      AC_MSG_RESULT("select $withval as path to TBB")
    ])

AC_SUBST(TBB_INCLUDES)
AC_SUBST(TBB_LIBS)

TBB_INCLUDES=""
TBB_LIBS=""

tbb_ok=no

LOCAL_INCLUDES=""
LOCAL_LIBS="-ltbb -ltbbmalloc"

AC_LANG_SAVE
AC_LANG_CPLUSPLUS

CPPFLAGS_old=$CPPFLAGS

if test "x$TBBHOME" != "xno"; then
    if test "x$TBBHOME" == "xyes"; then
        TBBHOME=""
    fi
    if test -z $TBBHOME
    then
        AC_MSG_WARN(undefined TBBHOME variable which specify TBB library installation directory)
        AC_PATH_PROG(BINDIR, tbbvars.sh)
        if test "x$BINDIR" != "x" ; then
            dnl e.g. BINDIR = ./tbb/bin/intel64/cc4.1.0_libc2.4_kernel2.6.16.21/tbbvars.sh
            TBBHOME=$BINDIR
            TBBHOME=`echo ${TBBHOME} | sed -e "s,[[^/]]*$,,;s,/$,,;s,^$,.,"`
            TBBHOME=`echo ${TBBHOME} | sed -e "s,[[^/]]*$,,;s,/$,,;s,^$,.,"`
            TBBHOME=`echo ${TBBHOME} | sed -e "s,[[^/]]*$,,;s,/$,,;s,^$,.,"`
            TBBHOME=`echo ${TBBHOME} | sed -e "s,[[^/]]*$,,;s,/$,,;s,^$,.,"`
        fi
    fi
    if test ! -z $TBBHOME
    then
        TBBKERNEL='cc4.1.0_libc2.4_kernel2.6.16.21'
        LOCAL_INCLUDES="-I$TBBHOME/include"
        if test "x$TBBHOME" != "x/usr"; then
	    INTEL_LOCAL_LIB=""
            if test `uname -m` = "x86_64" ; then
                INTEL_LOCAL_LIB="$TBBHOME/lib/intel64/$TBBKERNEL"
            else
                INTEL_LOCAL_LIB="$TBBHOME/lib/ia32/$TBBKERNEL"
            fi
	    if test -z ${INTEL_LOCAL_LIB}; then
                LOCAL_LIBS="-L${INTEL_LOCAL_LIB} $LOCAL_LIBS"
	    else
                LOCAL_LIBS="-L${TBBHOME}/lib $LOCAL_LIBS"
	    fi
        fi
    fi

dnl check tbb header

    CPPFLAGS="$CPPFLAGS $LOCAL_INCLUDES"

    AC_CHECK_HEADER(tbb/tbb.h,tbb_ok=yes ,tbb_ok=no)
fi

if  test "x$tbb_ok" = "xyes"
then

dnl check TBB library

  LIBS_old="$LIBS"
  LIBS="$LIBS $LOCAL_LIBS"
  AC_TRY_LINK([#include <tbb/tbb.h>],
              [tbb::simple_partitioner()],
              tbb_ok=yes,tbb_ok=no)

  LIBS="$LIBS_old"
 
fi

CPPFLAGS=$CPPFLAGS_old
AC_LANG_RESTORE

AC_MSG_RESULT(for TBB: $tbb_ok)

if  test "x$tbb_ok" = "xyes"
then
  TBB_LIBS="$LOCAL_LIBS"
  TBB_INCLUDES="$LOCAL_INCLUDES"
  CPPFLAGS="-DWITH_TBB $CPPFLAGS"
fi

AM_CONDITIONAL(WITH_TBB, [test x"$tbb_ok" = xyes])

])dnl