#  Check availability of LIGHT module binary distribution
#
#  Author : Marc Tajchman (CEA, 2002)
#------------------------------------------------------------

AC_DEFUN([CHECK_LIGHT],[

AC_CHECKING(for Light)

Light_ok=no

AC_ARG_WITH(gui,
	    --with-light=DIR root directory path of LIGHT installation,
	    LIGHT_DIR="$withval",LIGHT_DIR="")

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

# no --with-light option used

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

    # LIGHT_ROOT_DIR environment variable defined
    LIGHT_DIR=$LIGHT_ROOT_DIR

  else

    # search LIGHT binaries in PATH variable
    AC_PATH_PROG(TEMP, libLIGHT.so)
    if test "x$TEMP" != "x" ; then
      LIGHT_BIN_DIR=`dirname $TEMP`
      LIGHT_DIR=`dirname $LIGHT_BIN_DIR`
    fi

  fi
#
fi

if test -f ${LIGHT_DIR}/lib/salome/libLIGHT.so  ; then
  Light_ok=yes
  AC_MSG_RESULT(Using LIGHT distribution in ${LIGHT_DIR})

  if test "x$LIGHT_ROOT_DIR" == "x" ; then
    LIGHT_ROOT_DIR=${LIGHT_DIR}
  fi
  AC_SUBST(LIGHT_ROOT_DIR)
else
  AC_MSG_WARN("Cannot find compiled LIGHT distribution")
fi
  
AC_MSG_RESULT(for LIGHT: $Light_ok)
 
])dnl