#serial 5 # Use Gnulib's robust chdir function. # It can handle arbitrarily long directory names, which means # that when it is given the name of an existing directory, it # never fails with ENAMETOOLONG. # Arrange to compile chdir-long.c only on systems that define PATH_MAX. dnl Copyright (C) 2004, 2005 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Written by Jim Meyering. AC_DEFUN([gl_FUNC_CHDIR_LONG], [ AC_LIBSOURCES([chdir-long.c, chdir-long.h]) AC_CACHE_CHECK([whether this system has a definition of PATH_MAX], gl_have_path_max_definition, [AC_EGREP_CPP([have_path_max_definition], [#include <unistd.h> #include <limits.h> #ifdef PATH_MAX have_path_max_definition #endif], gl_have_path_max_definition=yes, gl_have_path_max_definition=no)]) if test $gl_have_path_max_definition; then AC_LIBOBJ([chdir-long]) gl_PREREQ_CHDIR_LONG fi ]) AC_DEFUN([gl_PREREQ_CHDIR_LONG], [ AM_STDBOOL_H gl_FUNC_MEMPCPY gl_FUNC_OPENAT gl_FUNC_MEMRCHR ])