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.
9 dnl Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
10 dnl This file is free software; the Free Software Foundation
11 dnl gives unlimited permission to copy and/or distribute it,
12 dnl with or without modifications, as long as this notice is preserved.
14 # Written by Jim Meyering.
16 AC_DEFUN([gl_FUNC_CHDIR_LONG],
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],
23 #if defined PATH_MAX || defined MAXPATHLEN
24 have_arbitrary_file_name_length_limit
26 gl_cv_have_arbitrary_file_name_length_limit=yes,
27 gl_cv_have_arbitrary_file_name_length_limit=no)])
29 if test $gl_cv_have_arbitrary_file_name_length_limit = yes; then
30 AC_LIBOBJ([chdir-long])
35 AC_DEFUN([gl_PREREQ_CHDIR_LONG],