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/*
* Author: Tyler Hicks <tyhicks@canonical.com>
*
* Copyright (C) 2013 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/*
* This test is to ensure that off_t is the same size as off64_t in all
* ecryptfs-utils builds. On 64 bit machines, this is the default. On 32 bit
* machines, the build system must define special variables to enable what is
* known as Large File Support (LFS).
*
* In configure.ac, we enable LFS by using the AC_SYS_LARGEFILE autoconf macro.
* It defines _FILE_OFFSET_BITS=64, when needed by the target architecture, in
* config.h. Also in configure.ac, we force all .c files to #include config.h
* so the entire ecryptfs-utils build should always have LFS enabled.
*
* IMPORTANT: We intentionally do not include config.h in this file, because it
* is expected that the build system automatically does it for us. This test
* verifies that the inclusion on config.h happens.
*
* We must define _LARGEFILE64_SOURCE in this file so that off64_t is
* available. However, defining it does not enable large file support.
*/
#define _LARGEFILE64_SOURCE 1
#include <sys/types.h>
int main(void)
{
return sizeof(off_t) == sizeof(off64_t) ? 0 : 1;
}
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