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comparison m4/stat-time.m4 @ 8568:392970b32717

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Support sub-second birthtime on cygwin. * m4/stat-time.m4 (gl_STAT_BIRTHTIME): Also check for st_birthtim. * lib/stat-time.h (STAT_TIMESPEC): Adjust comments. (get_stat_birthtime): Also work with st_birthtim.
author Eric Blake <ebb9@byu.net>
date Tue, 27 Mar 2007 20:03:47 +0000
parents f7fc3652bfc5
children f6cba5a556ce
comparison
equal deleted inserted replaced
8567:f7fc3652bfc5 8568:392970b32717
7 # gives unlimited permission to copy and/or distribute it, 7 # gives unlimited permission to copy and/or distribute it,
8 # with or without modifications, as long as this notice is preserved. 8 # with or without modifications, as long as this notice is preserved.
9 9
10 dnl From Paul Eggert. 10 dnl From Paul Eggert.
11 11
12 # st_atim.tv_nsec - Linux, Solaris 12 # st_atim.tv_nsec - Linux, Solaris, Cygwin
13 # st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE 13 # st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE
14 # st_atimensec - 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) 15 # st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1)
16 16
17 # st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway) 17 # st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway)
18 # st_birthtim - Cygwin 1.7.0+
18 19
19 AC_DEFUN([gl_STAT_TIME], 20 AC_DEFUN([gl_STAT_TIME],
20 [ 21 [
21 AC_REQUIRE([AC_C_INLINE]) 22 AC_REQUIRE([AC_C_INLINE])
22 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) 23 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
41 ], 42 ],
42 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes], 43 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes],
43 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])]) 44 [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])])
44 if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then 45 if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then
45 AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], 1, 46 AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], 1,
46 [Define to 1 if the type of the st_atim member of a struct stat is 47 [Define to 1 if the type of the st_atim member of a struct stat is
47 struct timespec.]) 48 struct timespec.])
48 fi], 49 fi],
49 [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [], 50 [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [],
50 [AC_CHECK_MEMBERS([struct stat.st_atimensec], [], 51 [AC_CHECK_MEMBERS([struct stat.st_atimensec], [],
51 [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [], 52 [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [],
57 #include <sys/stat.h>])], 58 #include <sys/stat.h>])],
58 [#include <sys/types.h> 59 [#include <sys/types.h>
59 #include <sys/stat.h>]) 60 #include <sys/stat.h>])
60 ]) 61 ])
61 62
62 # Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.). 63 # Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.)
64 # and NTFS (Cygwin).
63 # There was a time when this field was named st_createtime (21 June 65 # There was a time when this field was named st_createtime (21 June
64 # 2002 to 16 July 2002) But that window is very small and applied only 66 # 2002 to 16 July 2002) But that window is very small and applied only
65 # to development code, so systems still using that configuration are 67 # to development code, so systems still using that configuration are
66 # not supported. See revisions 1.10 and 1.11 of FreeBSD's 68 # not supported. See revisions 1.10 and 1.11 of FreeBSD's
67 # src/sys/ufs/ufs/dinode.h. 69 # src/sys/ufs/ufs/dinode.h.
70 [ 72 [
71 AC_REQUIRE([AC_C_INLINE]) 73 AC_REQUIRE([AC_C_INLINE])
72 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) 74 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
73 AC_CHECK_HEADERS_ONCE([sys/time.h]) 75 AC_CHECK_HEADERS_ONCE([sys/time.h])
74 AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [], 76 AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [],
75 [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [], [], 77 [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [],
78 [AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [],
79 [#include <sys/types.h>
80 #include <sys/stat.h>])],
76 [#include <sys/types.h> 81 [#include <sys/types.h>
77 #include <sys/stat.h>])], 82 #include <sys/stat.h>])],
78 [#include <sys/types.h> 83 [#include <sys/types.h>
79 #include <sys/stat.h>]) 84 #include <sys/stat.h>])
80 ]) 85 ])