1 # Checks for stat-related time functions.
3 # Copyright (C) 1998, 1999, 2001, 2003, 2005, 2006, 2007 Free Software
6 # This file is free software; the Free Software Foundation
7 # gives unlimited permission to copy and/or distribute it,
8 # with or without modifications, as long as this notice is preserved.
12 # st_atim.tv_nsec - Linux, Solaris
13 # st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE
14 # st_atimensec - FreeBSD, NetBSD, if defined _POSIX_SOURCE
15 # st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1)
18 # st_birthtimespec present on NetBSD (probably also FreBSD, OpenBSD)
20 AC_DEFUN([gl_STAT_TIME],
22 AC_REQUIRE([AC_C_INLINE])
23 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
24 AC_CHECK_HEADERS_ONCE([sys/time.h])
26 AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec],
27 [AC_CACHE_CHECK([whether struct stat.st_atim is of type struct timespec],
28 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec],
31 #include <sys/types.h>
34 # include <sys/time.h>
43 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes],
44 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])])
45 if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then
46 AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], 1,
47 [Define to 1 if the type of the st_atim member of a struct stat is
50 [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [],
51 [AC_CHECK_MEMBERS([struct stat.st_atimensec], [],
52 [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [],
53 [AC_CHECK_MEMBERS([struct stat.st_spare1], [],
55 [#include <sys/types.h>
56 #include <sys/stat.h>])],
57 [#include <sys/types.h>
58 #include <sys/stat.h>])],
59 [#include <sys/types.h>
60 #include <sys/stat.h>])],
61 [#include <sys/types.h>
62 #include <sys/stat.h>])],
63 [#include <sys/types.h>
64 #include <sys/stat.h>])
67 # Checks for st_birthtime, which is a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.)
68 # There was a time when this field was named st_createtime (21 June 2002 to 16 July 2002)
69 # But that window is very small and applied only to development code, so systems still
70 # using that configuration are not a realistic development target.
71 # See revisions 1.10 and 1.11 of FreeBSD's src/sys/ufs/ufs/dinode.h.
73 AC_DEFUN([gl_STAT_BIRTHTIME],
75 AC_REQUIRE([AC_C_INLINE])
76 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
77 AC_CHECK_HEADERS_ONCE([sys/time.h])
78 AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_sec, struct stat.st_birthtimespec.tv_nsec], [],
79 [AC_CHECK_MEMBERS([struct stat.st_birthtime, struct stat.st_birthtimensec], [],
80 [AC_CHECK_MEMBERS([struct stat.st_spare4], [],
82 [#include <sys/types.h>
83 #include <sys/stat.h>])],
84 [#include <sys/types.h>
85 #include <sys/stat.h>])],
86 [#include <sys/types.h>
87 #include <sys/stat.h>])