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 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_LIBSOURCES([chdir-long.c, chdir-long.h])
19 AC_CACHE_CHECK([whether this system has a definition of PATH_MAX],
20 gl_have_path_max_definition,
21 [AC_EGREP_CPP([have_path_max_definition],
25 have_path_max_definition
27 gl_have_path_max_definition=yes,
28 gl_have_path_max_definition=no)])
30 if test $gl_have_path_max_definition; then
31 AC_LIBOBJ([chdir-long])
36 AC_DEFUN([gl_PREREQ_CHDIR_LONG],