gnulib/import/m4/sys_stat_h.m4

   1 # sys_stat_h.m4 serial 31   -*- Autoconf -*-
   2 dnl Copyright (C) 2006-2019 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.
   6
   7 dnl From Eric Blake.
   8 dnl Provide a GNU-like <sys/stat.h>.
   9
  10 AC_DEFUN([gl_HEADER_SYS_STAT_H],
  11 [
  12   AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
  13
  14   dnl Check for broken stat macros.
  15   AC_REQUIRE([AC_HEADER_STAT])
  16
  17   gl_CHECK_NEXT_HEADERS([sys/stat.h])
  18
  19   dnl Ensure the type mode_t gets defined.
  20   AC_REQUIRE([AC_TYPE_MODE_T])
  21
  22   dnl Whether to enable precise timestamps in 'struct stat'.
  23   m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [
  24     AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC])
  25   ], [
  26     WINDOWS_STAT_TIMESPEC=0
  27   ])
  28   AC_SUBST([WINDOWS_STAT_TIMESPEC])
  29
  30   dnl Whether to ensure that struct stat.st_size is 64-bit wide.
  31   m4_ifdef([gl_LARGEFILE], [
  32     AC_REQUIRE([gl_LARGEFILE])
  33   ], [
  34     WINDOWS_64_BIT_ST_SIZE=0
  35   ])
  36   AC_SUBST([WINDOWS_64_BIT_ST_SIZE])
  37
  38   dnl Define types that are supposed to be defined in <sys/types.h> or
  39   dnl <sys/stat.h>.
  40   AC_CHECK_TYPE([nlink_t], [],
  41     [AC_DEFINE([nlink_t], [int],
  42        [Define to the type of st_nlink in struct stat, or a supertype.])],
  43     [#include <sys/types.h>
  44      #include <sys/stat.h>])
  45
  46   dnl Check for declarations of anything we want to poison if the
  47   dnl corresponding gnulib module is not in use.
  48   gl_WARN_ON_USE_PREPARE([[#include <sys/stat.h>
  49     ]], [fchmodat fstat fstatat futimens lchmod lstat mkdirat mkfifo mkfifoat
  50     mknod mknodat stat utimensat])
  51 ]) # gl_HEADER_SYS_STAT_H
  52
  53 AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR],
  54 [
  55   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  56   AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
  57   gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  58   dnl Define it also as a C macro, for the benefit of the unit tests.
  59   gl_MODULE_INDICATOR_FOR_TESTS([$1])
  60 ])
  61
  62 AC_DEFUN([gl_SYS_STAT_H_DEFAULTS],
  63 [
  64   AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
  65   GNULIB_FCHMODAT=0;    AC_SUBST([GNULIB_FCHMODAT])
  66   GNULIB_FSTAT=0;       AC_SUBST([GNULIB_FSTAT])
  67   GNULIB_FSTATAT=0;     AC_SUBST([GNULIB_FSTATAT])
  68   GNULIB_FUTIMENS=0;    AC_SUBST([GNULIB_FUTIMENS])
  69   GNULIB_LCHMOD=0;      AC_SUBST([GNULIB_LCHMOD])
  70   GNULIB_LSTAT=0;       AC_SUBST([GNULIB_LSTAT])
  71   GNULIB_MKDIRAT=0;     AC_SUBST([GNULIB_MKDIRAT])
  72   GNULIB_MKFIFO=0;      AC_SUBST([GNULIB_MKFIFO])
  73   GNULIB_MKFIFOAT=0;    AC_SUBST([GNULIB_MKFIFOAT])
  74   GNULIB_MKNOD=0;       AC_SUBST([GNULIB_MKNOD])
  75   GNULIB_MKNODAT=0;     AC_SUBST([GNULIB_MKNODAT])
  76   GNULIB_STAT=0;        AC_SUBST([GNULIB_STAT])
  77   GNULIB_UTIMENSAT=0;   AC_SUBST([GNULIB_UTIMENSAT])
  78   GNULIB_OVERRIDES_STRUCT_STAT=0; AC_SUBST([GNULIB_OVERRIDES_STRUCT_STAT])
  79   dnl Assume proper GNU behavior unless another module says otherwise.
  80   HAVE_FCHMODAT=1;      AC_SUBST([HAVE_FCHMODAT])
  81   HAVE_FSTATAT=1;       AC_SUBST([HAVE_FSTATAT])
  82   HAVE_FUTIMENS=1;      AC_SUBST([HAVE_FUTIMENS])
  83   HAVE_LCHMOD=1;        AC_SUBST([HAVE_LCHMOD])
  84   HAVE_LSTAT=1;         AC_SUBST([HAVE_LSTAT])
  85   HAVE_MKDIRAT=1;       AC_SUBST([HAVE_MKDIRAT])
  86   HAVE_MKFIFO=1;        AC_SUBST([HAVE_MKFIFO])
  87   HAVE_MKFIFOAT=1;      AC_SUBST([HAVE_MKFIFOAT])
  88   HAVE_MKNOD=1;         AC_SUBST([HAVE_MKNOD])
  89   HAVE_MKNODAT=1;       AC_SUBST([HAVE_MKNODAT])
  90   HAVE_UTIMENSAT=1;     AC_SUBST([HAVE_UTIMENSAT])
  91   REPLACE_FSTAT=0;      AC_SUBST([REPLACE_FSTAT])
  92   REPLACE_FSTATAT=0;    AC_SUBST([REPLACE_FSTATAT])
  93   REPLACE_FUTIMENS=0;   AC_SUBST([REPLACE_FUTIMENS])
  94   REPLACE_LSTAT=0;      AC_SUBST([REPLACE_LSTAT])
  95   REPLACE_MKDIR=0;      AC_SUBST([REPLACE_MKDIR])
  96   REPLACE_MKFIFO=0;     AC_SUBST([REPLACE_MKFIFO])
  97   REPLACE_MKNOD=0;      AC_SUBST([REPLACE_MKNOD])
  98   REPLACE_STAT=0;       AC_SUBST([REPLACE_STAT])
  99   REPLACE_UTIMENSAT=0;  AC_SUBST([REPLACE_UTIMENSAT])
 100 ])