[Qt-interest] Is this a Qt bug or MinGW bug?

[1+1=2]

Hello everyone,

I encountered a strange problem. I use Mingw Version Qt4.7beta2 to
write a very simple procedure. When I run the generated xxx.exe file,
a message appears: “ the application failed to i ntialize properly
error code (0xc000005) ”

Finally, I found the problem: If I use "-LE:\***" as link flag, error
box will appear when i try to run the xxx.exe, but it work well when i
use "-Le:\***" as link flags.

I can reproduce this problem under xp and vista.

The test case I used is very simple:

// main.cpp
#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>
int main(int argc, char ** argv)
{
     QCoreApplication app(argc, argv);
     qDebug()<<"Hello World!";
     return 0;
}

To investigate this problem, we directly use make instead of qmake of
cmake, The "Makefile" file is simple too:

CXX           = g++
DEFINES       = -DQT_DLL -DQT_CORE_LIB
INCPATH       = -I"e:\Qt\4.7.0-beta2\include"
LIBS          = -L"e:\Qt\4.7.0-beta2\lib"
main:  main.o
    $(CXX)  -o main  main.o  $(LIBS) -lQtCore4
main.o: main.cpp
    $(CXX) -c $(INCPATH) -o main.o main.cpp -Wall -DUNICODE

You can change the path in INCPATH and LIBS to your Qt dir, then run
make, a program called main.exe will be generated. your can run it.

Then you can the Drive letter from lowercase to uppercase, After
remove the main.o and main.exe, run make against. One new program
called main.exe will be generated.
When I try to run this .exe file, i get an error message box.

I cannot reproduce the problem if I use mingw and c++ without Qt, So I
dont know is this an bug of Mingw or Qt.

The Mingw version(which was installed when i installed QtCreator 2.0):

Target: mingw32
Configured with: ../gcc-4.4.0/configure
--enable-languages=c,ada,c++,fortran,java,objc,obj-c++
--disable-sjlj-exceptions --enable-shared --enable-libgcj
--enable-libgomp --with-dwarf2 --disable-win32-registry
--enable-libstdcxx-debug --enable-version-specific-runtime-libs
--prefix=/mingw --with-gmp=/mingw/src/gmp/root
--with-mpfr=/mingw/src/mpfr/root --build=mingw32
Thread model: win32
gcc version 4.4.0 (GCC)

Anyone can help me?

Yours sincerely,

Debao.