1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/* cdefs.h
Standard C definitions... */
/*
* Copyright (c) 1995 RadioMail Corporation. All rights reserved.
* Copyright (c) 2004-2017 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1996-2003 by Internet Software Consortium
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Internet Systems Consortium, Inc.
* PO Box 360
* Newmarket, NH 03857 USA
* <info@isc.org>
* https://www.isc.org/
*
* This software was written for RadioMail Corporation by Ted Lemon
* under a contract with Vixie Enterprises. Further modifications have
* been made for Internet Systems Consortium under a contract
* with Vixie Laboratories.
*/
#if !defined (__ISC_DHCP_CDEFS_H__)
#define __ISC_DHCP_CDEFS_H__
/* Delete attributes if not gcc or not the right version of gcc. */
#if !defined(__GNUC__) || __GNUC__ < 2 || \
(__GNUC__ == 2 && __GNUC_MINOR__ < 5) || defined (darwin)
#define __attribute__(x)
#endif
/* The following macro handles the case of unwanted return values. In
* GCC one can specify an attribute for a function to generate a warning
* if the return value of the function is ignored and one can't dispose of
* the warning by the use of void. In conjunction with the use of -Werror
* these warnings prohibit the compilation of the package. This macro
* allows us to assign the return value to a variable and then ignore it.
*
* __attribute__((unused)) is added for avoiding another warning about set,
* but unused variable. This is produced by unused-but-set-variable switch
* that is enabled by default in gcc 4.6.
*/
#if !defined(__GNUC__) || (__GNUC__ < 4)
#define IGNORE_RET(x) (void) x
#else
#define IGNORE_RET(x) \
do { \
int __attribute__((unused)) ignore_return ;\
ignore_return = x; \
} while (0)
#endif
/* This macro is defined to avoid unused-but-set-variable warning
* that is enabled in gcc 4.6
*/
#define IGNORE_UNUSED(x) { x = x; }
#endif /* __ISC_DHCP_CDEFS_H__ */
|
