1 # sys_resource_h.m4 serial 2
2 dnl Copyright (C) 2012-2020 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_HEADER_SYS_RESOURCE],
9 AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS])
10 dnl <sys/resource.h> is always overridden, because of GNULIB_POSIXCHECK.
11 gl_CHECK_NEXT_HEADERS([sys/resource.h])
12 if test $ac_cv_header_sys_resource_h = yes; then
17 AC_SUBST([HAVE_SYS_RESOURCE_H])
19 dnl Check for declarations of anything we want to poison if the
20 dnl corresponding gnulib module is not in use.
21 gl_WARN_ON_USE_PREPARE([[
22 #if HAVE_SYS_RESOURCE_H
23 /* At least FreeBSD 5.0 needs extra headers before <sys/resource.h>
25 # include <sys/types.h>
26 # include <sys/time.h>
27 # include <sys/resource.h>
33 AC_DEFUN([gl_SYS_RESOURCE_MODULE_INDICATOR],
35 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
36 AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS])
37 gl_MODULE_INDICATOR_SET_VARIABLE([$1])
38 dnl Define it also as a C macro, for the benefit of the unit tests.
39 gl_MODULE_INDICATOR_FOR_TESTS([$1])
42 AC_DEFUN([gl_SYS_RESOURCE_H_DEFAULTS],
44 GNULIB_GETRUSAGE=0; AC_SUBST([GNULIB_GETRUSAGE])
45 dnl Assume proper GNU behavior unless another module says otherwise.
46 HAVE_GETRUSAGE=1; AC_SUBST([HAVE_GETRUSAGE])