3 # Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
4 # This file is free software; the Free Software Foundation
5 # gives unlimited permission to copy and/or distribute it,
6 # with or without modifications, as long as this notice is preserved.
10 AC_DEFUN([gl_TIMESPEC],
12 dnl Prerequisites of lib/timespec.h.
13 AC_REQUIRE([AC_HEADER_TIME])
14 AC_CHECK_HEADERS_ONCE(sys/time.h)
15 gl_CHECK_TYPE_STRUCT_TIMESPEC
16 AC_STRUCT_ST_MTIM_NSEC
18 dnl Persuade glibc <time.h> to declare nanosleep().
19 AC_REQUIRE([AC_GNU_SOURCE])
21 AC_CHECK_DECLS(nanosleep, , , [#include <time.h>])
24 dnl Define HAVE_STRUCT_TIMESPEC if `struct timespec' is declared
25 dnl in time.h or sys/time.h.
27 AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
29 dnl Persuade pedantic Solaris to declare struct timespec.
30 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
32 AC_REQUIRE([AC_HEADER_TIME])
33 AC_CHECK_HEADERS_ONCE(sys/time.h)
34 AC_CACHE_CHECK([for struct timespec], fu_cv_sys_struct_timespec,
37 # if TIME_WITH_SYS_TIME
38 # include <sys/time.h>
42 # include <sys/time.h>
48 [static struct timespec x; x.tv_sec = x.tv_nsec;],
49 fu_cv_sys_struct_timespec=yes,
50 fu_cv_sys_struct_timespec=no)
53 if test $fu_cv_sys_struct_timespec = yes; then
54 AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1,
55 [Define if struct timespec is declared in <time.h>. ])