1#serial 22
2dnl Copyright (C) 2005-2021 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_FTS],
8[
9  gl_FUNC_FTS_CORE
10])
11
12AC_DEFUN([gl_FUNC_FTS_CORE],
13[
14  dnl Prerequisites of lib/fts.c.
15  gl_FUNC_OPENAT
16
17  AC_CHECK_FUNCS_ONCE([fstatfs])
18  AC_CHECK_HEADERS_ONCE([sys/param.h sys/vfs.h])dnl
19  if test "$ac_cv_func_fstatfs,$ac_cv_header_sys_vfs_h" = yes,yes; then
20    AC_CHECK_MEMBERS([struct statfs.f_type], [], [],
21      [[$ac_includes_default
22        #include <sys/vfs.h>
23      ]])
24    if test "$ac_cv_member_struct_statfs_f_type" = yes; then
25      AC_CHECK_TYPES([__fsword_t], [], [],
26        [[$ac_includes_default
27          #include <sys/vfs.h>
28        ]])
29    fi
30  fi
31
32  AC_CHECK_FUNC([fts_open])
33  if test $ac_cv_func_fts_open = yes; then
34    dnl The system already has the symbols fts_open, etc.
35    dnl Avoid conflicts between these symbols and ours at the linker level.
36    AC_DEFINE([fts_open], [rpl_fts_open],
37      [Define to the overridden function name])
38    AC_DEFINE([fts_close], [rpl_fts_close],
39      [Define to the overridden function name])
40    AC_DEFINE([fts_read], [rpl_fts_read],
41      [Define to the overridden function name])
42    AC_DEFINE([fts_set], [rpl_fts_set],
43      [Define to the overridden function name])
44    AC_DEFINE([fts_children], [rpl_fts_children],
45      [Define to the overridden function name])
46    AC_DEFINE([fts_cross_check], [rpl_fts_cross_check],
47      [Define to the overridden function name])
48  fi
49])
50