1# sys_stat_h.m4 serial 34   -*- Autoconf -*-
2dnl Copyright (C) 2006-2020 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
7dnl From Eric Blake.
8dnl Provide a GNU-like <sys/stat.h>.
9
10AC_DEFUN([gl_HEADER_SYS_STAT_H],
11[
12  AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
13
14  dnl Check for broken stat macros.
15  AC_REQUIRE([AC_HEADER_STAT])
16
17  gl_CHECK_NEXT_HEADERS([sys/stat.h])
18
19  dnl Ensure the type mode_t gets defined.
20  AC_REQUIRE([AC_TYPE_MODE_T])
21
22  dnl Whether to enable precise timestamps in 'struct stat'.
23  m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [
24    AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC])
25  ], [
26    WINDOWS_STAT_TIMESPEC=0
27  ])
28  AC_SUBST([WINDOWS_STAT_TIMESPEC])
29
30  dnl Whether to ensure that struct stat.st_size is 64-bit wide.
31  m4_ifdef([gl_LARGEFILE], [
32    AC_REQUIRE([gl_LARGEFILE])
33  ], [
34    WINDOWS_64_BIT_ST_SIZE=0
35  ])
36  AC_SUBST([WINDOWS_64_BIT_ST_SIZE])
37
38  dnl Define types that are supposed to be defined in <sys/types.h> or
39  dnl <sys/stat.h>.
40  AC_CHECK_TYPE([nlink_t], [],
41    [AC_DEFINE([nlink_t], [int],
42       [Define to the type of st_nlink in struct stat, or a supertype.])],
43    [#include <sys/types.h>
44     #include <sys/stat.h>])
45
46  dnl Check for declarations of anything we want to poison if the
47  dnl corresponding gnulib module is not in use.
48  gl_WARN_ON_USE_PREPARE([[#include <sys/stat.h>
49    ]], [fchmodat fstat fstatat futimens getumask lchmod lstat
50    mkdirat mkfifo mkfifoat mknod mknodat stat utimensat])
51
52  AC_REQUIRE([AC_C_RESTRICT])
53])
54
55AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR],
56[
57  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
58  AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
59  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
60  dnl Define it also as a C macro, for the benefit of the unit tests.
61  gl_MODULE_INDICATOR_FOR_TESTS([$1])
62])
63
64AC_DEFUN([gl_SYS_STAT_H_DEFAULTS],
65[
66  AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
67  GNULIB_FCHMODAT=0;    AC_SUBST([GNULIB_FCHMODAT])
68  GNULIB_FSTAT=0;       AC_SUBST([GNULIB_FSTAT])
69  GNULIB_FSTATAT=0;     AC_SUBST([GNULIB_FSTATAT])
70  GNULIB_FUTIMENS=0;    AC_SUBST([GNULIB_FUTIMENS])
71  GNULIB_GETUMASK=0;    AC_SUBST([GNULIB_GETUMASK])
72  GNULIB_LCHMOD=0;      AC_SUBST([GNULIB_LCHMOD])
73  GNULIB_LSTAT=0;       AC_SUBST([GNULIB_LSTAT])
74  GNULIB_MKDIRAT=0;     AC_SUBST([GNULIB_MKDIRAT])
75  GNULIB_MKFIFO=0;      AC_SUBST([GNULIB_MKFIFO])
76  GNULIB_MKFIFOAT=0;    AC_SUBST([GNULIB_MKFIFOAT])
77  GNULIB_MKNOD=0;       AC_SUBST([GNULIB_MKNOD])
78  GNULIB_MKNODAT=0;     AC_SUBST([GNULIB_MKNODAT])
79  GNULIB_STAT=0;        AC_SUBST([GNULIB_STAT])
80  GNULIB_UTIMENSAT=0;   AC_SUBST([GNULIB_UTIMENSAT])
81  GNULIB_OVERRIDES_STRUCT_STAT=0; AC_SUBST([GNULIB_OVERRIDES_STRUCT_STAT])
82  dnl Assume proper GNU behavior unless another module says otherwise.
83  HAVE_FCHMODAT=1;      AC_SUBST([HAVE_FCHMODAT])
84  HAVE_FSTATAT=1;       AC_SUBST([HAVE_FSTATAT])
85  HAVE_FUTIMENS=1;      AC_SUBST([HAVE_FUTIMENS])
86  HAVE_GETUMASK=1;      AC_SUBST([HAVE_GETUMASK])
87  HAVE_LCHMOD=1;        AC_SUBST([HAVE_LCHMOD])
88  HAVE_LSTAT=1;         AC_SUBST([HAVE_LSTAT])
89  HAVE_MKDIRAT=1;       AC_SUBST([HAVE_MKDIRAT])
90  HAVE_MKFIFO=1;        AC_SUBST([HAVE_MKFIFO])
91  HAVE_MKFIFOAT=1;      AC_SUBST([HAVE_MKFIFOAT])
92  HAVE_MKNOD=1;         AC_SUBST([HAVE_MKNOD])
93  HAVE_MKNODAT=1;       AC_SUBST([HAVE_MKNODAT])
94  HAVE_UTIMENSAT=1;     AC_SUBST([HAVE_UTIMENSAT])
95  REPLACE_FCHMODAT=0;   AC_SUBST([REPLACE_FCHMODAT])
96  REPLACE_FSTAT=0;      AC_SUBST([REPLACE_FSTAT])
97  REPLACE_FSTATAT=0;    AC_SUBST([REPLACE_FSTATAT])
98  REPLACE_FUTIMENS=0;   AC_SUBST([REPLACE_FUTIMENS])
99  REPLACE_LSTAT=0;      AC_SUBST([REPLACE_LSTAT])
100  REPLACE_MKDIR=0;      AC_SUBST([REPLACE_MKDIR])
101  REPLACE_MKFIFO=0;     AC_SUBST([REPLACE_MKFIFO])
102  REPLACE_MKNOD=0;      AC_SUBST([REPLACE_MKNOD])
103  REPLACE_STAT=0;       AC_SUBST([REPLACE_STAT])
104  REPLACE_UTIMENSAT=0;  AC_SUBST([REPLACE_UTIMENSAT])
105])
106