mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-30 08:09:04 +00:00
84 lines
3.0 KiB
Plaintext
84 lines
3.0 KiB
Plaintext
# Checks for stat-related time functions.
|
|
|
|
# Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2013 Free Software
|
|
# Foundation, Inc.
|
|
|
|
# This file is free software; the Free Software Foundation
|
|
# gives unlimited permission to copy and/or distribute it,
|
|
# with or without modifications, as long as this notice is preserved.
|
|
|
|
dnl From Paul Eggert.
|
|
|
|
# st_atim.tv_nsec - Linux, Solaris, Cygwin
|
|
# st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE
|
|
# st_atimensec - FreeBSD, NetBSD, if defined _POSIX_SOURCE
|
|
# st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1)
|
|
|
|
# st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway)
|
|
# st_birthtim - Cygwin 1.7.0+
|
|
|
|
AC_DEFUN([gl_STAT_TIME],
|
|
[
|
|
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
|
|
AC_CHECK_HEADERS_ONCE([sys/time.h])
|
|
|
|
AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec],
|
|
[AC_CACHE_CHECK([whether struct stat.st_atim is of type struct timespec],
|
|
[ac_cv_typeof_struct_stat_st_atim_is_struct_timespec],
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
|
[[
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#if HAVE_SYS_TIME_H
|
|
# include <sys/time.h>
|
|
#endif
|
|
#include <time.h>
|
|
struct timespec ts;
|
|
struct stat st;
|
|
]],
|
|
[[
|
|
st.st_atim = ts;
|
|
]])],
|
|
[ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes],
|
|
[ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])])
|
|
if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then
|
|
AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], [1],
|
|
[Define to 1 if the type of the st_atim member of a struct stat is
|
|
struct timespec.])
|
|
fi],
|
|
[AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [],
|
|
[AC_CHECK_MEMBERS([struct stat.st_atimensec], [],
|
|
[AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])
|
|
])
|
|
|
|
# Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.)
|
|
# and NTFS (Cygwin).
|
|
# There was a time when this field was named st_createtime (21 June
|
|
# 2002 to 16 July 2002) But that window is very small and applied only
|
|
# to development code, so systems still using that configuration are
|
|
# not supported. See revisions 1.10 and 1.11 of FreeBSD's
|
|
# src/sys/ufs/ufs/dinode.h.
|
|
#
|
|
AC_DEFUN([gl_STAT_BIRTHTIME],
|
|
[
|
|
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
|
|
AC_CHECK_HEADERS_ONCE([sys/time.h])
|
|
AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [],
|
|
[AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [],
|
|
[AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])],
|
|
[#include <sys/types.h>
|
|
#include <sys/stat.h>])
|
|
])
|