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130 lines
5.2 KiB
Plaintext
130 lines
5.2 KiB
Plaintext
# sys_stat_h.m4 serial 42 -*- Autoconf -*-
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dnl Copyright (C) 2006-2022 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Eric Blake.
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dnl Provide a GNU-like <sys/stat.h>.
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AC_DEFUN_ONCE([gl_SYS_STAT_H],
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[
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AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
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dnl Check for broken stat macros.
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AC_REQUIRE([AC_HEADER_STAT])
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gl_CHECK_NEXT_HEADERS([sys/stat.h])
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dnl Ensure the type mode_t gets defined.
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AC_REQUIRE([AC_TYPE_MODE_T])
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dnl Whether to enable precise timestamps in 'struct stat'.
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m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [
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AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC])
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], [
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WINDOWS_STAT_TIMESPEC=0
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])
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AC_SUBST([WINDOWS_STAT_TIMESPEC])
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dnl Whether to ensure that struct stat.st_size is 64-bit wide.
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m4_ifdef([gl_LARGEFILE], [
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AC_REQUIRE([gl_LARGEFILE])
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], [
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WINDOWS_64_BIT_ST_SIZE=0
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])
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AC_SUBST([WINDOWS_64_BIT_ST_SIZE])
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dnl Define types that are supposed to be defined in <sys/types.h> or
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dnl <sys/stat.h>.
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AC_CHECK_TYPE([nlink_t], [],
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[AC_DEFINE([nlink_t], [int],
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[Define to the type of st_nlink in struct stat, or a supertype.])],
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[#include <sys/types.h>
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#include <sys/stat.h>])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use.
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gl_WARN_ON_USE_PREPARE([[#include <sys/stat.h>
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]], [chmod fchmodat fstat fstatat futimens getumask lchmod lstat
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mkdirat mkfifo mkfifoat mknod mknodat stat utimensat])
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AC_REQUIRE([AC_C_RESTRICT])
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])
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# gl_SYS_STAT_MODULE_INDICATOR([modulename])
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# sets the shell variable that indicates the presence of the given module
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# to a C preprocessor expression that will evaluate to 1.
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# This macro invocation must not occur in macros that are AC_REQUIREd.
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AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR],
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[
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dnl Ensure to expand the default settings once only.
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gl_SYS_STAT_H_REQUIRE_DEFAULTS
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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# Initializes the default values for AC_SUBSTed shell variables.
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# This macro must not be AC_REQUIREd. It must only be invoked, and only
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# outside of macros or in macros that are not AC_REQUIREd.
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AC_DEFUN([gl_SYS_STAT_H_REQUIRE_DEFAULTS],
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[
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m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS], [
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gl_UNISTD_H_REQUIRE_DEFAULTS dnl for REPLACE_FCHDIR
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHMOD])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHMODAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTATAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FUTIMENS])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUMASK])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHMOD])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSTAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIRAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFO])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFOAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNOD])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNODAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UTIMENSAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OVERRIDES_STRUCT_STAT])
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dnl Support Microsoft deprecated alias function names by default.
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHMOD], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MKDIR], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UMASK], [1])
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])
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m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS])
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AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
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])
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AC_DEFUN([gl_SYS_STAT_H_DEFAULTS],
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[
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT])
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HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT])
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HAVE_FUTIMENS=1; AC_SUBST([HAVE_FUTIMENS])
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HAVE_GETUMASK=1; AC_SUBST([HAVE_GETUMASK])
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HAVE_LCHMOD=1; AC_SUBST([HAVE_LCHMOD])
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HAVE_LSTAT=1; AC_SUBST([HAVE_LSTAT])
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HAVE_MKDIRAT=1; AC_SUBST([HAVE_MKDIRAT])
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HAVE_MKFIFO=1; AC_SUBST([HAVE_MKFIFO])
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HAVE_MKFIFOAT=1; AC_SUBST([HAVE_MKFIFOAT])
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HAVE_MKNOD=1; AC_SUBST([HAVE_MKNOD])
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HAVE_MKNODAT=1; AC_SUBST([HAVE_MKNODAT])
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HAVE_UTIMENSAT=1; AC_SUBST([HAVE_UTIMENSAT])
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REPLACE_CHMOD=0; AC_SUBST([REPLACE_CHMOD])
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REPLACE_FCHMODAT=0; AC_SUBST([REPLACE_FCHMODAT])
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REPLACE_FSTAT=0; AC_SUBST([REPLACE_FSTAT])
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REPLACE_FSTATAT=0; AC_SUBST([REPLACE_FSTATAT])
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REPLACE_FUTIMENS=0; AC_SUBST([REPLACE_FUTIMENS])
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REPLACE_LSTAT=0; AC_SUBST([REPLACE_LSTAT])
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REPLACE_MKDIR=0; AC_SUBST([REPLACE_MKDIR])
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REPLACE_MKFIFO=0; AC_SUBST([REPLACE_MKFIFO])
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REPLACE_MKFIFOAT=0; AC_SUBST([REPLACE_MKFIFOAT])
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REPLACE_MKNOD=0; AC_SUBST([REPLACE_MKNOD])
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REPLACE_MKNODAT=0; AC_SUBST([REPLACE_MKNODAT])
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REPLACE_STAT=0; AC_SUBST([REPLACE_STAT])
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REPLACE_UTIMENSAT=0; AC_SUBST([REPLACE_UTIMENSAT])
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])
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