Mercurial > hg-old > index.cgi
comparison link-warning.h @ 398:7987ee447833 3.0-beta1
Added generated files for release
| author | lost@l-w.ca |
|---|---|
| date | Fri, 23 Jul 2010 17:18:52 -0600 |
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| 397:09fe7c40a082 | 398:7987ee447833 |
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| 1 /* A C macro for emitting link time warnings. | |
| 2 Copyright (C) 1995, 1997, 2000, 2002-2003, 2007, 2009-2010 Free Software | |
| 3 Foundation, Inc. | |
| 4 | |
| 5 This program is free software: you can redistribute it and/or modify it | |
| 6 under the terms of the GNU General Public License as published | |
| 7 by the Free Software Foundation; either version 3 of the License, or | |
| 8 (at your option) any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Lesser General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 17 | |
| 18 /* GL_LINK_WARNING("literal string") arranges to emit the literal string as | |
| 19 a linker warning on most glibc systems. | |
| 20 We use a linker warning rather than a preprocessor warning, because | |
| 21 #warning cannot be used inside macros. */ | |
| 22 #ifndef GL_LINK_WARNING | |
| 23 /* This works on platforms with GNU ld and ELF object format. | |
| 24 Testing __GLIBC__ is sufficient for asserting that GNU ld is in use. | |
| 25 Testing __ELF__ guarantees the ELF object format. | |
| 26 Testing __GNUC__ is necessary for the compound expression syntax. */ | |
| 27 # if defined __GLIBC__ && defined __ELF__ && defined __GNUC__ | |
| 28 # define GL_LINK_WARNING(message) \ | |
| 29 GL_LINK_WARNING1 (__FILE__, __LINE__, message) | |
| 30 # define GL_LINK_WARNING1(file, line, message) \ | |
| 31 GL_LINK_WARNING2 (file, line, message) /* macroexpand file and line */ | |
| 32 # define GL_LINK_WARNING2(file, line, message) \ | |
| 33 GL_LINK_WARNING3 (file ":" #line ": warning: " message) | |
| 34 # define GL_LINK_WARNING3(message) \ | |
| 35 ({ static const char warning[sizeof (message)] \ | |
| 36 __attribute__ ((__unused__, \ | |
| 37 __section__ (".gnu.warning"), \ | |
| 38 __aligned__ (1))) \ | |
| 39 = message "\n"; \ | |
| 40 (void)0; \ | |
| 41 }) | |
| 42 # else | |
| 43 # define GL_LINK_WARNING(message) ((void) 0) | |
| 44 # endif | |
| 45 #endif |