AC_DEFUN(subdir[_INIT], [
  AC_REQUIRE([COMPAT_FUNC_STRLCPY])
  AC_REQUIRE([COMPAT_FUNC_STRSEP])

  if test -z "$2"; then
    LISTHASH_PREFIX="${PACKAGE_NAME}";
  else
    LISTHASH_PREFIX="$2";
  fi
  AC_SUBST([LISTHASH_PREFIX])

  LISTHASH_DIR="$1";
  AC_SUBST([LISTHASH_DIR])

  AC_CONFIG_FILES([$1/${LISTHASH_PREFIX}_listhash.h:$1/listhash.h.in])
  AC_CONFIG_FILES([$1/${LISTHASH_PREFIX}_list.c:$1/list.c.in])
  AC_CONFIG_FILES([$1/${LISTHASH_PREFIX}_hash.c:$1/hash.c.in])
  AC_CONFIG_FILES([$1/${LISTHASH_PREFIX}_list_new.3:$1/list_new.3.in])
  AC_CONFIG_FILES([$1/${LISTHASH_PREFIX}_hash_new.3:$1/hash_new.3.in])
])