AC_DEFUN([XDT_I18N],

[

  dnl Substitute GETTEXT_PACKAGE variable

  GETTEXT_PACKAGE=m4_default([$], [AC_PACKAGE_TARNAME()])

  AC_DEFINE_UNQUOTED([GETTEXT_PACKAGE], ["$GETTEXT_PACKAGE"], [Name of default gettext domain])

  AC_SUBST([GETTEXT_PACKAGE])

  dnl gettext and stuff

  ALL_LINGUAS="$1"

  AM_GLIB_GNU_GETTEXT()

  dnl This is required on some Linux systems

  AC_CHECK_FUNC([bind_textdomain_codeset])

  dnl Determine where to install locale files

  AC_MSG_CHECKING([for locales directory])

  AC_ARG_WITH([locales-dir],

  [

    AC_HELP_STRING([--with-locales-dir=DIR], [Install locales into DIR])

  ], [localedir=$withval],

  [

    if test x"$CATOBJEXT" = x".mo"; then

      localedir=$libdir/locale

    else

      localedir=$datadir/locale

    fi

  ])

  AC_MSG_RESULT([$localedir])

  AC_SUBST([localedir])

  dnl Determine additional xgettext flags

  AC_MSG_CHECKING([for additional xgettext flags])

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

    XGETTEXT_ARGS="--keyword=Q_ --from-code=UTF-8";

  else

    XGETTEXT_ARGS="$XGETTEXT_ARGS --keyword=Q_ --from-code=UTF-8";

  fi

  AC_SUBST([XGETTEXT_ARGS])

  AC_MSG_RESULT([$XGETTEXT_ARGS])

])

  GETTEXT_PACKAGE=m4_default([$], [AC_PACKAGE_TARNAME()])

  AC_DEFINE_UNQUOTED([GETTEXT_PACKAGE], ["$GETTEXT_PACKAGE"], [Name of default gettext domain])

  AC_SUBST([GETTEXT_PACKAGE])

  ALL_LINGUAS="$1"

  AM_GLIB_GNU_GETTEXT()

AC_DEFUN([XDT_CHECK_PACKAGE],

[

  XDT_PROG_PKG_CONFIG()

  AC_MSG_CHECKING([for $ >= $])

  if $PKG_CONFIG "--atleast-version=$3" "$2" >/dev/null >&; then

    $1_VERSION=`$PKG_CONFIG --modversion "$2"`

    AC_MSG_RESULT([$$1_VERSION])

    AC_MSG_CHECKING([$1_CFLAGS])

    $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`

    AC_MSG_RESULT([$$1_CFLAGS])

    AC_MSG_CHECKING([$1_LIBS])

    $1_LIBS=`$PKG_CONFIG --libs "$2"`

    AC_MSG_RESULT([$$1_LIBS])

    $1_REQUIRED_VERSION=$

    AC_SUBST([$1_VERSION])

    AC_SUBST([$1_CFLAGS])

    AC_SUBST([$1_LIBS])

    AC_SUBST([$1_REQUIRED_VERSION])

    ifelse([$], , , [$])

  elif $PKG_CONFIG --exists "$2" >/dev/null >&; then

    xdt_cv_version=`$PKG_CONFIG --modversion "$2"`

    AC_MSG_RESULT([found, but $xdt_cv_version])

    ifelse([$], ,

    [

      echo "*** The required package $2 was found on your system,"

      echo "*** but the installed version ($xdt_cv_version) is too old."

      echo "*** Please upgrade $2 to atleast version $3, or adjust"

      echo "*** the PKG_CONFIG_PATH environment variable if you installed"

      echo "*** the new version of the package in a nonstandard prefix so"

      echo "*** pkg-config is able to find it."

      exit

    ], [$])

  else

    AC_MSG_RESULT([not found])

    ifelse([$], ,

    [

      echo "*** The required package $2 was not found on your system."

      echo "*** Please install $2 (atleast version $3) or adjust"

      echo "*** the PKG_CONFIG_PATH environment variable if you"

      echo "*** installed the package in a nonstandard prefix so that"

      echo "*** pkg-config is able to find it."

      exit

    ], [$])

  fi

])