2 # Checks required to run `timevar', a time tracker.
4 # Copyright (C) 2002-2003, 2009-2015 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 AC_DEFUN([BISON_PREREQ_TIMEVAR],
22 [AC_CHECK_HEADERS([sys/time.h sys/times.h])
23 AC_CHECK_HEADERS([sys/resource.h],,,
26 # include <sys/time.h>
28 #ifdef HAVE_SYS_TIMES_H
29 # include <sys/times.h>
32 AC_CHECK_FUNCS([times])
34 AC_CHECK_DECLS([getrusage, times, clock, sysconf], [], [],
37 # include <sys/time.h>
40 # include <sys/times.h>
42 #if HAVE_SYS_RESOURCE_H
43 # include <sys/resource.h>
47 AC_CHECK_TYPES([clock_t, struct tms], [], [],
50 # include <sys/time.h>
53 # include <sys/times.h>
55 #if HAVE_SYS_RESOURCE_H
56 # include <sys/resource.h>