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