| 1 | # sys_stat_h.m4 serial 41 -*- Autoconf -*-
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| 2 | dnl Copyright (C) 2006-2021 Free Software Foundation, Inc.
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| 3 | dnl This file is free software; the Free Software Foundation
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| 4 | dnl gives unlimited permission to copy and/or distribute it,
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| 5 | dnl with or without modifications, as long as this notice is preserved.
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| 6 |
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| 7 | dnl From Eric Blake.
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| 8 | dnl Provide a GNU-like <sys/stat.h>.
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| 9 |
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| 10 | AC_DEFUN_ONCE([gl_SYS_STAT_H],
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| 11 | [
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| 12 | AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
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| 13 |
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| 14 | dnl Check for broken stat macros.
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| 15 | AC_REQUIRE([AC_HEADER_STAT])
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| 16 |
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| 17 | gl_CHECK_NEXT_HEADERS([sys/stat.h])
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| 18 |
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| 19 | dnl Ensure the type mode_t gets defined.
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| 20 | AC_REQUIRE([AC_TYPE_MODE_T])
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| 21 |
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| 22 | dnl Whether to enable precise timestamps in 'struct stat'.
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| 23 | m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [
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| 24 | AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC])
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| 25 | ], [
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| 26 | WINDOWS_STAT_TIMESPEC=0
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| 27 | ])
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| 28 | AC_SUBST([WINDOWS_STAT_TIMESPEC])
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| 29 |
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| 30 | dnl Whether to ensure that struct stat.st_size is 64-bit wide.
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| 31 | m4_ifdef([gl_LARGEFILE], [
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| 32 | AC_REQUIRE([gl_LARGEFILE])
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| 33 | ], [
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| 34 | WINDOWS_64_BIT_ST_SIZE=0
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| 35 | ])
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| 36 | AC_SUBST([WINDOWS_64_BIT_ST_SIZE])
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| 37 |
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| 38 | dnl Define types that are supposed to be defined in <sys/types.h> or
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| 39 | dnl <sys/stat.h>.
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| 40 | AC_CHECK_TYPE([nlink_t], [],
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| 41 | [AC_DEFINE([nlink_t], [int],
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| 42 | [Define to the type of st_nlink in struct stat, or a supertype.])],
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| 43 | [#include <sys/types.h>
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| 44 | #include <sys/stat.h>])
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| 45 |
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| 46 | dnl Check for declarations of anything we want to poison if the
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| 47 | dnl corresponding gnulib module is not in use.
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| 48 | gl_WARN_ON_USE_PREPARE([[#include <sys/stat.h>
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| 49 | ]], [fchmodat fstat fstatat futimens getumask lchmod lstat
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| 50 | mkdirat mkfifo mkfifoat mknod mknodat stat utimensat])
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| 51 |
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| 52 | AC_REQUIRE([AC_C_RESTRICT])
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| 53 | ])
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| 54 |
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| 55 | # gl_SYS_STAT_MODULE_INDICATOR([modulename])
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| 56 | # sets the shell variable that indicates the presence of the given module
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| 57 | # to a C preprocessor expression that will evaluate to 1.
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| 58 | # This macro invocation must not occur in macros that are AC_REQUIREd.
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| 59 | AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR],
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| 60 | [
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| 61 | dnl Ensure to expand the default settings once only.
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| 62 | gl_SYS_STAT_H_REQUIRE_DEFAULTS
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| 63 | gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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| 64 | dnl Define it also as a C macro, for the benefit of the unit tests.
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| 65 | gl_MODULE_INDICATOR_FOR_TESTS([$1])
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| 66 | ])
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| 67 |
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| 68 | # Initializes the default values for AC_SUBSTed shell variables.
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| 69 | # This macro must not be AC_REQUIREd. It must only be invoked, and only
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| 70 | # outside of macros or in macros that are not AC_REQUIREd.
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| 71 | AC_DEFUN([gl_SYS_STAT_H_REQUIRE_DEFAULTS],
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| 72 | [
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| 73 | m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS], [
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| 74 | gl_UNISTD_H_REQUIRE_DEFAULTS dnl for REPLACE_FCHDIR
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| 75 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHMODAT])
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| 76 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTAT])
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| 77 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSTATAT])
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| 78 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FUTIMENS])
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| 79 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUMASK])
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| 80 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHMOD])
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| 81 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSTAT])
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| 82 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIR])
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| 83 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKDIRAT])
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| 84 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFO])
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| 85 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKFIFOAT])
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| 86 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNOD])
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| 87 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKNODAT])
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| 88 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STAT])
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| 89 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UTIMENSAT])
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| 90 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OVERRIDES_STRUCT_STAT])
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| 91 | dnl Support Microsoft deprecated alias function names by default.
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| 92 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHMOD], [1])
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| 93 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_MKDIR], [1])
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| 94 | gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UMASK], [1])
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| 95 | ])
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| 96 | m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_STAT_H_MODULE_INDICATOR_DEFAULTS])
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| 97 | AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
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| 98 | ])
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| 99 |
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| 100 | AC_DEFUN([gl_SYS_STAT_H_DEFAULTS],
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| 101 | [
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| 102 | dnl Assume proper GNU behavior unless another module says otherwise.
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| 103 | HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT])
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| 104 | HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT])
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| 105 | HAVE_FUTIMENS=1; AC_SUBST([HAVE_FUTIMENS])
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| 106 | HAVE_GETUMASK=1; AC_SUBST([HAVE_GETUMASK])
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| 107 | HAVE_LCHMOD=1; AC_SUBST([HAVE_LCHMOD])
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| 108 | HAVE_LSTAT=1; AC_SUBST([HAVE_LSTAT])
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| 109 | HAVE_MKDIRAT=1; AC_SUBST([HAVE_MKDIRAT])
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| 110 | HAVE_MKFIFO=1; AC_SUBST([HAVE_MKFIFO])
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| 111 | HAVE_MKFIFOAT=1; AC_SUBST([HAVE_MKFIFOAT])
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| 112 | HAVE_MKNOD=1; AC_SUBST([HAVE_MKNOD])
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| 113 | HAVE_MKNODAT=1; AC_SUBST([HAVE_MKNODAT])
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| 114 | HAVE_UTIMENSAT=1; AC_SUBST([HAVE_UTIMENSAT])
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| 115 | REPLACE_FCHMODAT=0; AC_SUBST([REPLACE_FCHMODAT])
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| 116 | REPLACE_FSTAT=0; AC_SUBST([REPLACE_FSTAT])
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| 117 | REPLACE_FSTATAT=0; AC_SUBST([REPLACE_FSTATAT])
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| 118 | REPLACE_FUTIMENS=0; AC_SUBST([REPLACE_FUTIMENS])
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| 119 | REPLACE_LSTAT=0; AC_SUBST([REPLACE_LSTAT])
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| 120 | REPLACE_MKDIR=0; AC_SUBST([REPLACE_MKDIR])
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| 121 | REPLACE_MKFIFO=0; AC_SUBST([REPLACE_MKFIFO])
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| 122 | REPLACE_MKFIFOAT=0; AC_SUBST([REPLACE_MKFIFOAT])
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| 123 | REPLACE_MKNOD=0; AC_SUBST([REPLACE_MKNOD])
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| 124 | REPLACE_MKNODAT=0; AC_SUBST([REPLACE_MKNODAT])
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| 125 | REPLACE_STAT=0; AC_SUBST([REPLACE_STAT])
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| 126 | REPLACE_UTIMENSAT=0; AC_SUBST([REPLACE_UTIMENSAT])
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| 127 | ])
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