1 #ifndef foogccmacrohfoo
2 #define foogccmacrohfoo
7 This file is part of avahi.
9 avahi is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as
11 published by the Free Software Foundation; either version 2.1 of the
12 License, or (at your option) any later version.
14 avahi is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
17 Public License for more details.
19 You should have received a copy of the GNU Lesser General Public
20 License along with avahi; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 /** \file gccmacro.h Defines some macros for GCC extensions */
27 #include <avahi-common/cdecl.h>
31 #if defined(__GNUC__) && (__GNUC__ >= 4)
32 #define AVAHI_GCC_SENTINEL __attribute__ ((sentinel))
34 /** Macro for usage of GCC's sentinel compilation warnings */
35 #define AVAHI_GCC_SENTINEL
39 #define AVAHI_GCC_PRINTF_ATTR(a,b) __attribute__ ((format (printf, a, b)))
41 /** Macro for usage of GCC's printf compilation warnings */
42 #define AVAHI_GCC_PRINTF_ATTR(a,b)
45 /** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 1 and 2 */
46 #define AVAHI_GCC_PRINTF_ATTR12 AVAHI_GCC_PRINTF_ATTR(1,2)
48 /** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 2 and 3 */
49 #define AVAHI_GCC_PRINTF_ATTR23 AVAHI_GCC_PRINTF_ATTR(2,3)
52 #define AVAHI_GCC_NORETURN __attribute__((noreturn))
54 /** Macro for no-return functions */
55 #define AVAHI_GCC_NORETURN
59 #define AVAHI_GCC_UNUSED __attribute__ ((unused))
61 /** Macro for not used parameter */
62 #define AVAHI_GCC_UNUSED