1# Copyright (c) 2013 Holger Weiss <holger@weiss.in-berlin.de>
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are met:
6#
7# 1. Redistributions of source code must retain the above copyright notice, this
8#    list of conditions and the following disclaimer.
9#
10# 2. Redistributions in binary form must reproduce the above copyright notice,
11#    this list of conditions and the following disclaimer in the documentation
12#    and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17# DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24
25# NSCA_FUNC_DAEMON
26# ----------------
27# Check the availability of a BSD-style daemon(3) function.  If no such function
28# is found, arrange for using the bundled implementation.
29AC_DEFUN([NSCA_FUNC_DAEMON],
30[
31  AC_CHECK_FUNC([daemon],
32    [AC_DEFINE([HAVE_DAEMON], [1],
33      [Define to 1 if you have the `daemon' function.])],
34    [AC_LIBOBJ([daemon])
35     AC_CHECK_HEADERS([paths.h])
36     AC_CHECK_DECL([_PATH_DEVNULL], [],
37       [AC_DEFINE([_PATH_DEVNULL], ["/dev/null"],
38         [Define to the path of the `null' device.])],
39       [[#ifdef HAVE_PATHS_H
40         #include <paths.h>
41         #endif]])])
42])# NSCA_FUNC_DAEMON
43
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45