1 # sys_types_h.m4 serial 7
2 dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN_ONCE([gl_SYS_TYPES_H],
9 AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
10 gl_NEXT_HEADERS([sys/types.h])
12 dnl Ensure the type pid_t gets defined.
13 AC_REQUIRE([AC_TYPE_PID_T])
15 dnl Ensure the type mode_t gets defined.
16 AC_REQUIRE([AC_TYPE_MODE_T])
18 dnl Whether to override the 'off_t' type.
19 AC_REQUIRE([gl_TYPE_OFF_T])
21 dnl Whether to override the 'dev_t' and 'ino_t' types.
22 m4_ifdef([gl_WINDOWS_STAT_INODES], [
23 AC_REQUIRE([gl_WINDOWS_STAT_INODES])
27 AC_SUBST([WINDOWS_STAT_INODES])
30 AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
34 # This works around a buggy version in autoconf <= 2.69.
35 # See <https://lists.gnu.org/archive/html/autoconf/2016-08/msg00014.html>
37 m4_version_prereq([2.70], [], [
39 # This is taken from the following Autoconf patch:
40 # http://git.sv.gnu.org/cgit/autoconf.git/commit/?id=e17a30e98
42 m4_undefine([AC_HEADER_MAJOR])
43 AC_DEFUN([AC_HEADER_MAJOR],
44 [AC_CHECK_HEADERS_ONCE([sys/types.h])
45 AC_CHECK_HEADER([sys/mkdev.h],
46 [AC_DEFINE([MAJOR_IN_MKDEV], [1],
47 [Define to 1 if `major', `minor', and `makedev' are declared in
49 if test $ac_cv_header_sys_mkdev_h = no; then
50 AC_CHECK_HEADER([sys/sysmacros.h],
51 [AC_DEFINE([MAJOR_IN_SYSMACROS], [1],
52 [Define to 1 if `major', `minor', and `makedev' are declared in