1#serial 10
2
3# Use Gnulib's robust chdir function.
4# It can handle arbitrarily long directory names, which means
5# that when it is given the name of an existing directory, it
6# never fails with ENAMETOOLONG.
7# Arrange to compile chdir-long.c only on systems that define PATH_MAX.
8
9dnl Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
10dnl This file is free software; the Free Software Foundation
11dnl gives unlimited permission to copy and/or distribute it,
12dnl with or without modifications, as long as this notice is preserved.
13
14# Written by Jim Meyering.
15
16AC_DEFUN([gl_FUNC_CHDIR_LONG],
17[
18  AC_CACHE_CHECK([whether this system has an arbitrary file name length limit],
19    gl_cv_have_arbitrary_file_name_length_limit,
20    [AC_EGREP_CPP([have_arbitrary_file_name_length_limit],
21                  [#include <unistd.h>
22#include <limits.h>
23#if defined PATH_MAX || defined MAXPATHLEN
24have_arbitrary_file_name_length_limit
25#endif],
26    gl_cv_have_arbitrary_file_name_length_limit=yes,
27    gl_cv_have_arbitrary_file_name_length_limit=no)])
28
29  if test $gl_cv_have_arbitrary_file_name_length_limit = yes; then
30    AC_LIBOBJ([chdir-long])
31    gl_PREREQ_CHDIR_LONG
32  fi
33])
34
35AC_DEFUN([gl_PREREQ_CHDIR_LONG],
36[
37  :
38])
39