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ac50fbac CR |
1 | # Checks for stat-related time functions. |
2 | ||
3 | # Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2012 Free Software | |
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 | dnl Modified by Chet Ramey for bash. | |
12 | ||
13 | # st_atim.tv_nsec - Linux, Solaris, Cygwin | |
14 | # st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE | |
15 | # st_atimensec - FreeBSD, NetBSD, if defined _POSIX_SOURCE | |
16 | # st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1) | |
17 | ||
18 | # st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway) | |
19 | # st_birthtim - Cygwin 1.7.0+ | |
20 | ||
21 | AC_DEFUN([BASH_STAT_TIME], | |
22 | [ | |
23 | AC_REQUIRE([AC_C_INLINE]) | |
24 | AC_CHECK_HEADERS_ONCE([sys/time.h]) | |
25 | ||
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], | |
29 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
30 | [[ | |
31 | #include <sys/types.h> | |
32 | #include <sys/stat.h> | |
33 | #if HAVE_SYS_TIME_H | |
34 | # include <sys/time.h> | |
35 | #endif | |
36 | #include <time.h> | |
37 | struct timespec ts; | |
38 | struct stat st; | |
39 | ]], | |
40 | [[ | |
41 | st.st_atim = ts; | |
42 | ]])], | |
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 | |
48 | struct timespec.]) | |
49 | fi], | |
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 | [#include <sys/types.h> | |
54 | #include <sys/stat.h>])], | |
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 | ]) |