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