AC_DEFUN(AC_FIND_FILE, [
  $3=NO
  for i in $2; do
    for j in $1; do
      if test -r "$i/$j"; then
        $3=$i
        break 2
      fi
    done
  done
])



AC_DEFUN(AC_ENABLE_DEBUG, [
  AC_ARG_ENABLE(debug,
    [  --enable-debug          enable debug],
    [ with_debug="$enableval"], [with_debug="no"])
  if test "$with_debug" = "no"; then
    CXXFLAGS="`echo $CXXFLAGS | sed s/-g//`"
    CFLAGS="`echo $CFLAGS | sed s/-g//`"
  fi
])



AC_DEFUN(AC_GET_DATA_DIR, [
  if test "$datadir" = '${prefix}/share'; then
    if test "$prefix" = 'NONE'; then
      DATA_DIR="$ac_default_prefix/share"
    else
      DATA_DIR="$prefix/share"
    fi
  else
    DATA_DIR="$datadir"
  fi
  AC_SUBST(DATA_DIR)
])