1# sys_types_h.m4 serial 13
2dnl Copyright (C) 2011-2021 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_ONCE([gl_SYS_TYPES_H],
8[
9  AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
10
11  dnl Use sane struct stat types in OpenVMS 8.2 and later.
12  AC_DEFINE([_USE_STD_STAT], 1, [For standard stat data types on VMS.])
13
14  gl_NEXT_HEADERS([sys/types.h])
15
16  dnl Ensure the type pid_t gets defined.
17  AC_REQUIRE([AC_TYPE_PID_T])
18
19  dnl Ensure the type mode_t gets defined.
20  AC_REQUIRE([AC_TYPE_MODE_T])
21
22  dnl Whether to override the 'off_t' type.
23  AC_REQUIRE([gl_TYPE_OFF_T])
24
25  dnl Whether to override the 'dev_t' and 'ino_t' types.
26  m4_ifdef([gl_WINDOWS_STAT_INODES], [
27    AC_REQUIRE([gl_WINDOWS_STAT_INODES])
28  ], [
29    WINDOWS_STAT_INODES=0
30  ])
31  AC_SUBST([WINDOWS_STAT_INODES])
32])
33
34# Initializes the default values for AC_SUBSTed shell variables.
35# This macro must not be AC_REQUIREd.  It must only be invoked, and only
36# outside of macros or in macros that are not AC_REQUIREd.
37AC_DEFUN([gl_SYS_TYPES_H_REQUIRE_DEFAULTS],
38[
39  m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_TYPE_H_MODULE_INDICATOR_DEFAULTS], [
40  ])
41  m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_TYPE_H_MODULE_INDICATOR_DEFAULTS])
42  AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
43])
44
45AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
46[
47])
48
49# This works around a buggy version in autoconf <= 2.69.
50# See <https://lists.gnu.org/r/autoconf/2016-08/msg00014.html>
51# The 2.70 version isn't quoted properly, so override it too.
52
53m4_version_prereq([2.70.1], [], [
54
55m4_undefine([AC_HEADER_MAJOR])
56AC_DEFUN([AC_HEADER_MAJOR],
57[AC_CHECK_HEADERS_ONCE([sys/types.h])
58AC_CHECK_HEADER([sys/mkdev.h],
59                [AC_DEFINE([MAJOR_IN_MKDEV], [1],
60                           [Define to 1 if `major', `minor', and `makedev' are
61                            declared in <mkdev.h>.])])
62if test $ac_cv_header_sys_mkdev_h = no; then
63  AC_CHECK_HEADER([sys/sysmacros.h],
64                  [AC_DEFINE([MAJOR_IN_SYSMACROS], [1],
65                             [Define to 1 if `major', `minor', and `makedev'
66                              are declared in <sysmacros.h>.])])
67fi
68])# AC_HEADER_MAJOR
69
70])
71