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+# sys_stat_h.m4 serial 42 -*- Autoconf -*-
+dnl Copyright (C) 2006-2023 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])
+])