diff -r 000000000000 -r 1918ee327afb config.tests/mac/xcodeversion.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config.tests/mac/xcodeversion.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include <Carbon/Carbon.h>
+
+int success = 0;
+int fail = 1;
+int internal_error = success; // enable dwarf on internal errors
+
+int main(int argc, const char **argv)
+{
+    CFURLRef cfurl;
+    OSStatus err = LSFindApplicationForInfo(0, CFSTR("com.apple.Xcode"), 0, 0, &cfurl);
+    if (err != noErr)
+        return internal_error;
+    
+    CFBundleRef bundle = CFBundleCreate(0, cfurl);
+    if (bundle == 0)
+        return internal_error;
+
+    CFStringRef str = CFStringRef(CFBundleGetValueForInfoDictionaryKey(bundle, CFSTR("CFBundleShortVersionString")));
+    const char * ptr = CFStringGetCStringPtr(str, 0);
+    if (ptr == 0)
+        return internal_error;        
+
+    // self-test
+    const char * fail1 = "2.4";
+    const char * fail2 = "2.4.0";
+    const char * fail3  ="2.3";
+    const char * ok1  = "2.4.1";
+    const char * ok2  ="2.5";
+    const char * ok3  ="3.0";
+//    ptr = fail1;
+//    printf ("string: %s\n", ptr);
+   
+    int length = strlen(ptr);
+    if (length < 3) // expect "x.y" at least
+        return internal_error;
+
+    // fail on 2.4 and below (2.4.1 is ok)
+
+     if (ptr[0] < '2')
+        return fail;
+
+    if (ptr[0] >= '3')
+        return success;
+
+    if (ptr[2] < '4')
+        return fail;
+
+    if (length < 5)
+        return fail;
+
+    if (ptr[4] < '1')
+        return fail;
+    
+    return success;
+}
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