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# sys_stat_h.m4 serial 42 -*- Autoconf -*-
dnl Copyright (C) 2006-2024 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.
dnl From Eric Blake.
dnl Provide a GNU-like <sys/stat.h>.
AC_DEFUN_ONCE([gl_SYS_STAT_H],
[
AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
dnl Check for broken stat macros.
AC_REQUIRE([AC_HEADER_STAT])
gl_CHECK_NEXT_HEADERS([sys/stat.h])
dnl Ensure the type mode_t gets defined.
AC_REQUIRE([AC_TYPE_MODE_T])
dnl Whether to enable precise timestamps in 'struct stat'.
m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [
AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC])
], [
WINDOWS_STAT_TIMESPEC=0
])
AC_SUBST([WINDOWS_STAT_TIMESPEC])
dnl Whether to ensure that struct stat.st_size is 64-bit wide.
m4_ifdef([gl_LARGEFILE], [
AC_REQUIRE([gl_LARGEFILE])
], [
WINDOWS_64_BIT_ST_SIZE=0
])
AC_SUBST([WINDOWS_64_BIT_ST_SIZE])
dnl Define types that are supposed to be defined in <sys/types.h> or
dnl <sys/stat.h>.
AC_CHECK_TYPE([nlink_t], [],
[AC_DEFINE([nlink_t], [int],
[Define to the type of st_nlink in struct stat, or a supertype.])],
[#include <sys/types.h>
#include <sys/stat.h>])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
gl_WARN_ON_USE_PREPARE([[#include <sys/stat.h>
]], [chmod fchmodat fstat fstatat futimens getumask lchmod lstat
mkdirat mkfifo mkfifoat mknod mknodat stat utimensat])
AC_REQUIRE([AC_C_RESTRICT])
])
# gl_SYS_STAT_MODULE_INDICATOR([modulename])
# sets the shell variable that indicates the presence of the given module
# to a C preprocessor expression that will evaluate to 1.
# This macro invocation must not occur in macros that are AC_REQUIREd.
AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR],
[
dnl Ensure to expand the default settings once only.
gl_SYS_STAT_H_REQUIRE_DEFAULTS
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
# Initializes the default values for AC_SUBSTed shell variables.
# This macro must not be AC_REQUIREd. It must only be invoked, and only
# outside of macros or in macros that are not AC_REQUIREd.
AC_DEFUN([gl_SYS_STAT_H_REQUIRE_DEFAULTS],
[
m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS], [
gl_UNISTD_H_REQUIRE_DEFAULTS dnl for REPLACE_FCHDIR
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHMOD])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHMODAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTATAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FUTIMENS])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUMASK])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHMOD])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSTAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIR])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIRAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFO])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFOAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNOD])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNODAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UTIMENSAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OVERRIDES_STRUCT_STAT])
dnl Support Microsoft deprecated alias function names by default.
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHMOD], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MKDIR], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UMASK], [1])
])
m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS])
AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
])
AC_DEFUN([gl_SYS_STAT_H_DEFAULTS],
[
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT])
HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT])
HAVE_FUTIMENS=1; AC_SUBST([HAVE_FUTIMENS])
HAVE_GETUMASK=1; AC_SUBST([HAVE_GETUMASK])
HAVE_LCHMOD=1; AC_SUBST([HAVE_LCHMOD])
HAVE_LSTAT=1; AC_SUBST([HAVE_LSTAT])
HAVE_MKDIRAT=1; AC_SUBST([HAVE_MKDIRAT])
HAVE_MKFIFO=1; AC_SUBST([HAVE_MKFIFO])
HAVE_MKFIFOAT=1; AC_SUBST([HAVE_MKFIFOAT])
HAVE_MKNOD=1; AC_SUBST([HAVE_MKNOD])
HAVE_MKNODAT=1; AC_SUBST([HAVE_MKNODAT])
HAVE_UTIMENSAT=1; AC_SUBST([HAVE_UTIMENSAT])
REPLACE_CHMOD=0; AC_SUBST([REPLACE_CHMOD])
REPLACE_FCHMODAT=0; AC_SUBST([REPLACE_FCHMODAT])
REPLACE_FSTAT=0; AC_SUBST([REPLACE_FSTAT])
REPLACE_FSTATAT=0; AC_SUBST([REPLACE_FSTATAT])
REPLACE_FUTIMENS=0; AC_SUBST([REPLACE_FUTIMENS])
REPLACE_LSTAT=0; AC_SUBST([REPLACE_LSTAT])
REPLACE_MKDIR=0; AC_SUBST([REPLACE_MKDIR])
REPLACE_MKFIFO=0; AC_SUBST([REPLACE_MKFIFO])
REPLACE_MKFIFOAT=0; AC_SUBST([REPLACE_MKFIFOAT])
REPLACE_MKNOD=0; AC_SUBST([REPLACE_MKNOD])
REPLACE_MKNODAT=0; AC_SUBST([REPLACE_MKNODAT])
REPLACE_STAT=0; AC_SUBST([REPLACE_STAT])
REPLACE_UTIMENSAT=0; AC_SUBST([REPLACE_UTIMENSAT])
])
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