HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| c8fff863 PE |
1 | # Checks for stat-related time functions. |
| 2 | ||
| ba318903 | 3 | # Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2014 Free Software |
| c8fff863 PE |
4 | # Foundation, Inc. |
| 5 | ||
| 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. | |
| 9 | ||
| 10 | dnl From Paul Eggert. | |
| 11 | ||
| 12 | # st_atim.tv_nsec - Linux, Solaris, Cygwin | |
| 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) | |
| 16 | ||
| 17 | # st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway) | |
| 18 | # st_birthtim - Cygwin 1.7.0+ | |
| 19 | ||
| 20 | AC_DEFUN([gl_STAT_TIME], | |
| 21 | [ | |
| c8fff863 PE |
22 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) |
| 23 | AC_CHECK_HEADERS_ONCE([sys/time.h]) | |
| 24 | ||
| 25 | AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec], | |
| 26 | [AC_CACHE_CHECK([whether struct stat.st_atim is of type struct timespec], | |
| 27 | [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec], | |
| 28 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
| 29 | [[ | |
| 30 | #include <sys/types.h> | |
| 31 | #include <sys/stat.h> | |
| 32 | #if HAVE_SYS_TIME_H | |
| 33 | # include <sys/time.h> | |
| 34 | #endif | |
| 35 | #include <time.h> | |
| 36 | struct timespec ts; | |
| 37 | struct stat st; | |
| 38 | ]], | |
| 39 | [[ | |
| 40 | st.st_atim = ts; | |
| 41 | ]])], | |
| 42 | [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes], | |
| 43 | [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 | 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 | struct timespec.]) | |
| 48 | fi], | |
| 49 | [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [], | |
| 50 | [AC_CHECK_MEMBERS([struct stat.st_atimensec], [], | |
| 51 | [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [], | |
| 52 | [#include <sys/types.h> | |
| 53 | #include <sys/stat.h>])], | |
| 54 | [#include <sys/types.h> | |
| 55 | #include <sys/stat.h>])], | |
| 56 | [#include <sys/types.h> | |
| 57 | #include <sys/stat.h>])], | |
| 58 | [#include <sys/types.h> | |
| 59 | #include <sys/stat.h>]) | |
| 60 | ]) | |
| 61 | ||
| 62 | # Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.) | |
| 63 | # and NTFS (Cygwin). | |
| 64 | # There was a time when this field was named st_createtime (21 June | |
| 65 | # 2002 to 16 July 2002) But that window is very small and applied only | |
| 66 | # to development code, so systems still using that configuration are | |
| 67 | # not supported. See revisions 1.10 and 1.11 of FreeBSD's | |
| 68 | # src/sys/ufs/ufs/dinode.h. | |
| 69 | # | |
| 70 | AC_DEFUN([gl_STAT_BIRTHTIME], | |
| 71 | [ | |
| c8fff863 PE |
72 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) |
| 73 | AC_CHECK_HEADERS_ONCE([sys/time.h]) | |
| 74 | AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [], | |
| 75 | [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [], | |
| 76 | [AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [], | |
| 77 | [#include <sys/types.h> | |
| 78 | #include <sys/stat.h>])], | |
| 79 | [#include <sys/types.h> | |
| 80 | #include <sys/stat.h>])], | |
| 81 | [#include <sys/types.h> | |
| 82 | #include <sys/stat.h>]) | |
| 83 | ]) |