-#serial 2
+#serial 4
dnl From Jim Meyering.
dnl
dnl Check whether struct dirent has a member named d_type.
dnl
-AC_DEFUN(jm_CHECK_TYPE_STRUCT_DIRENT_D_TYPE,
+AC_DEFUN([jm_CHECK_TYPE_STRUCT_DIRENT_D_TYPE],
[AC_REQUIRE([AC_HEADER_DIRENT])dnl
AC_CACHE_CHECK([for d_type member in directory struct],
jm_cv_struct_dirent_d_type,