recompile Qt, configure get error.

Code:
Platform: Windows XP
 
After install Qt official package Qt SDK: qt-sdk-win-opensource-2010.05.exe.
For custom Qt settings needs, start my recompile steps:
 
i run a CMD shell on Qt Command Prompt & QTDIR with:
 
configure -debug-and-release -opensource -ltcg -no-vcproj >.\..\..\gui\qt_configure.log
 
enter 'y' to accept the license offer.
then got error msg:
 
generators/win32/msvc_vcproj.cpp:78: warning: non-local variable '<anonymous str
uct> dotNetCombo []' uses anonymous type
g++: unrecognized option '-static-libstdc++'
potential duplicate alias detected: 'widget.png'
potential duplicate alias detected: 'widget.png'
 
so, i can not run wingw32-make continue.
 
And if there 's no recompile steps, Qt SDK works well.
Even i reintstall Qt SDK and go steps above again, but just run CMD with 'configure',
do still got the SAME ERROR MSG. 
 
This means the official Qt SDK package can not rebuild Qt itself ? 
I mean do not change configure option even a bit, just run 'configure' as i say.
 
I don't think there's problems in qt-sdk-win-opensource-2010.05.exe install,
you see, just click "next" and "next" i've did, and Qt SDK works well for example applicaiton projects . 
 
Help me, please.
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