diff -r 000000000000 -r 1918ee327afb config.tests/unix/largefile/largefiletest.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config.tests/unix/largefile/largefiletest.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the config.tests of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/* Sample program for configure to test Large File support on target
+platforms.
+*/
+
+#define _LARGEFILE_SOURCE
+#define _LARGE_FILES
+#define _FILE_OFFSET_BITS 64
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <assert.h>
+#include <stdio.h>
+
+int main( int, char **argv )
+{
+// check that off_t can hold 2^63 - 1 and perform basic operations...
+#define OFF_T_64 (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+    if (OFF_T_64 % 2147483647 != 1)
+	return 1;
+
+    // stat breaks on SCO OpenServer
+    struct stat buf;
+    stat( argv[0], &buf );
+    if (!S_ISREG(buf.st_mode))
+	return 2;
+
+    FILE *file = fopen( argv[0], "r" );
+    off_t offset = ftello( file );
+    fseek( file, offset, SEEK_CUR );
+    fclose( file );
+    return 0;
+}