AC_INIT(gMathView.ml)

LABLGTKMATHVIEW_MAJOR_VERSION=0
LABLGTKMATHVIEW_MINOR_VERSION=2
LABLGTKMATHVIEW_MICRO_VERSION=2
LABLGTKMATHVIEW_VERSION=$LABLGTKMATHVIEW_MAJOR_VERSION.$LABLGTKMATHVIEW_MINOR_VERSION.$LABLGTKMATHVIEW_MICRO_VERSION

AC_CHECK_PROG(HAVE_GTKMATHVIEW, gtkmathview-config, yes, no)
if test $HAVE_GTKMATHVIEW = "no"; then
  AC_MSG_ERROR(could not find gtkmathview configuration script, please make sure gtkmathview is installed)
fi

AC_CHECK_PROG(HAVE_OCAMLC, ocamlc, yes, no)
if test $HAVE_OCAMLC = "no"; then
  AC_MSG_ERROR(could not find ocamlc in PATH, please make sure ocaml is installed)
fi

AC_MSG_CHECKING(for the ocaml library dir)
OCAML_ROOT=`ocamlc -v | grep "^Standard" | sed 's/^.*: *//'`
AC_MSG_RESULT($OCAML_ROOT)

RES="yes"
AC_CHECK_FILE($OCAML_ROOT/lablgtk/gtk.ml,
  LABLGTK_LIB_DIR=$OCAML_ROOT/lablgtk,
  RES="no"
)

if test $RES = "no"; then
  RES=""
  AC_CACHE_VAL(lablgtkmathview_cv_LABLGTK_LIB_DIR,
    echo "In which directory can I find the lablgtk library? (I haven't found it in the usual location $OCAML_ROOT/lablgtk)"
    read lablgtkmathview_cv_LABLGTK_LIB_DIR
    RES="Asked"
  )
  LABLGTK_LIB_DIR=$lablgtkmathview_cv_LABLGTK_LIB_DIR
  if test "$RES" != "Asked"; then
    LABLGTK_LIB_DIR=`eval "echo $LABLGTK_LIB_DIR"`
  fi
  AC_CACHE_SAVE
fi

RES="yes"
AC_CHECK_FILE($OCAML_ROOT/mlminidom/minidom.mli,
  MLMINIDOM_LIB_DIR=$OCAML_ROOT/mlminidom,
  RES="no"
)

if test $RES = "no"; then
  RES=""
  AC_CACHE_VAL(lablgtkmathview_cv_MLMINIDOM_LIB_DIR,
    echo "In which directory can I find the mlminidom library? (I haven't found it in the usual location $OCAML_ROOT/mlminidom)"
    read lablgtkmathview_cv_MLMINIDOM_LIB_DIR
    RES="Asked"
  )
  MLMINIDOM_LIB_DIR=$lablgtkmathview_cv_MLMINIDOM_LIB_DIR
  if test "$RES" != "Asked"; then
    MLMINIDOM_LIB_DIR=`eval "echo $MLMINIDOM_LIB_DIR"`
  fi
  AC_CACHE_SAVE
fi

AC_SUBST(LABLGTKMATHVIEW_VERSION)
AC_SUBST(OCAML_ROOT)
AC_SUBST(LABLGTK_LIB_DIR)
AC_SUBST(MLMINIDOM_LIB_DIR)

AC_OUTPUT([Makefile])