src/check.h

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 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
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #ifndef MPD_CHECK_H
  21 #define MPD_CHECK_H
  22
  23 /*
  24  * All sources must include config.h on the first line to ensure that
  25  * Large File Support is configured properly.  This header checks
  26  * whether this has happened.
  27  *
  28  * Usage: include this header before you use any of the above types.
  29  * It will stop the compiler if something went wrong.
  30  *
  31  * This is Linux/glibc specific, and only enabled in the debug build,
  32  * so bugs in this headers don't affect users with production builds.
  33  *
  34  */
  35
  36 #ifndef PACKAGE_VERSION
  37 #error config.h missing
  38 #endif
  39
  40 #if defined(__linux__) && !defined(NDEBUG) && defined(ENABLE_LARGEFILE) && \
  41         defined(_FEATURES_H) && defined(__i386__) && \
  42         !defined(__USE_FILE_OFFSET64)
  43 /* on i386, check if LFS is enabled */
  44 #error config.h was included too late
  45 #endif
  46
  47 #endif