dnl Copyright (C) 2009-2013  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.
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([AC_CHECK_LIBXML],[

AC_CHECKING(for libxml)

CPPFLAGS_old=$CPPFLAGS
CXXFLAGS_old=$CXXFLAGS

# Custom location of libxml2 package can be specified
# thorugh LIBXML_DIR variable
if test "x$LIBXML_DIR" != "x"
then
  CPPFLAGS="$CPPFLAGS -I$LIBXML_DIR/include/libxml2"
  CXXFLAGS="$CXXFLAGS -I$LIBXML_DIR/include/libxml2"
  if test "x$LIBXML_DIR" = "x/usr"
  then
    AC_MSG_NOTICE(Trying native Libxml2...)
    TMPLIBS="-lxml2 $LIBS"
  else
    AC_MSG_NOTICE(Trying Libxml2 from $LIBXML_DIR ...)
    TMPLIBS="-L$LIBXML_DIR/lib -lxml2 $LIBS"
  fi
  LIBXML_INCLUDES="-I$LIBXML_DIR/include/libxml2"
else
  CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
  CXXFLAGS="$CXXFLAGS -I/usr/include/libxml2"
  TMPLIBS="-lxml2 $LIBS"
  LIBXML_INCLUDES="-I/usr/include/libxml2"
fi

AC_CHECK_HEADER(libxml/parser.h,libxml_ok="yes",libxml_ok="no")

if  test "x$libxml_ok" = "xyes"
then
  LIBS_old=$LIBS
  LIBS=$TMPLIBS
  AC_CHECK_LIB(xml2,xmlInitParser,libxml_ok="yes",libxml_ok="no",)
  LIBS=$LIBS_old
fi

if test "x$libxml_ok" = "xyes"
then
  LIBXML_LIBS=$TMPLIBS
fi

AC_MSG_RESULT(for libxml: $libxml_ok)

CXXFLAGS=$CXXFLAGS_old
CPPFLAGS=$CPPFLAGS_old

AC_SUBST(LIBXML_LIBS)
AC_SUBST(LIBXML_INCLUDES)

])dnl
dnl