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add support for nanosecond timestamps on *BSD systems.
From: |
J.T. Conklin |
Subject: |
add support for nanosecond timestamps on *BSD systems. |
Date: |
10 Oct 2000 13:00:19 -0700 |
User-agent: |
Gnus/5.070095 (Pterodactyl Gnus v0.95) XEmacs/20.4 (Emerald) |
The enclosed patch adds support for nanosecond timestamps on *BSD
systems.
Since *BSD uses st_mtimespec and Solaris uses st_mtim, this required
AC_STRUCT_ST_MTIM_NSEC to pass the toplevel field name instead of just
tv_nsec (or equiv).
--jtc
2000-10-10 J.T. Conklin <address@hidden>
* acinclude.m4 (AC_STRUCT_ST_MTIM_NSEC): Add support for *BSD's
st_mtimespec field.
* filedef.h (FILE_TIMESTAMP_FROM_S_AND_NS): Likewise.
Index: acinclude.m4
===================================================================
RCS file: /usr/rback/release/tools-src/gnu/make/acinclude.m4,v
retrieving revision 1.1.1.3
diff -u -r1.1.1.3 acinclude.m4
--- acinclude.m4 2000/04/19 22:12:22 1.1.1.3
+++ acinclude.m4 2000/10/10 18:55:20
@@ -250,19 +250,20 @@
dnl From Paul Eggert <address@hidden>
AC_DEFUN(AC_STRUCT_ST_MTIM_NSEC,
- [AC_CACHE_CHECK([for nanoseconds member of struct stat.st_mtim],
+ [AC_CACHE_CHECK([for nanoseconds member of struct stat],
ac_cv_struct_st_mtim_nsec,
[ac_save_CPPFLAGS="$CPPFLAGS"
ac_cv_struct_st_mtim_nsec=no
- # tv_nsec -- the usual case
- # _tv_nsec -- Solaris 2.6, if
+ # st_mtim.tv_nsec -- the usual case
+ # st_mtim._tv_nsec -- Solaris 2.6, if
# (defined _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED == 1
# && !defined __EXTENSIONS__)
- # st__tim.tv_nsec -- UnixWare 2.1.2
- for ac_val in tv_nsec _tv_nsec st__tim.tv_nsec; do
+ # st_mtim.st__tim.tv_nsec -- UnixWare 2.1.2
+ # st_mtimespec.tv_nsec -- 4.4BSD, FreeBSD, NetBSD, OpenBSD, etc.
+ for ac_val in st_mtim.tv_nsec st_mtim._tv_nsec st_mtim.st__tim.tv_nsec
st_mtimespec.tv_nsec; do
CPPFLAGS="$ac_save_CPPFLAGS -DST_MTIM_NSEC=$ac_val"
AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/stat.h>], [struct stat s; s.st_mtim.ST_MTIM_NSEC;],
+#include <sys/stat.h>], [struct stat s; s.ST_MTIM_NSEC;],
[ac_cv_struct_st_mtim_nsec=$ac_val; break])
done
CPPFLAGS="$ac_save_CPPFLAGS"])
Index: filedef.h
===================================================================
RCS file: /usr/rback/release/tools-src/gnu/make/filedef.h,v
retrieving revision 1.1.1.3
diff -u -r1.1.1.3 filedef.h
--- filedef.h 2000/04/19 22:12:26 1.1.1.3
+++ filedef.h 2000/10/10 19:27:42
@@ -120,7 +120,7 @@
#ifdef ST_MTIM_NSEC
# define FILE_TIMESTAMP_STAT_MODTIME(st) \
FILE_TIMESTAMP_FROM_S_AND_NS ((st).st_mtime, \
- (st).st_mtim.ST_MTIM_NSEC)
+ (st).ST_MTIM_NSEC)
# define FILE_TIMESTAMPS_PER_S \
MIN ((FILE_TIMESTAMP) 1000000000, \
(INTEGER_TYPE_MAXIMUM (FILE_TIMESTAMP) \
--
J.T. Conklin
RedBack Networks
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