[Wine] Cross compiling with Qt and MinGW for Linux

[Joaquín Fernández Quiles]

Hello

I installed qt-win-opensource-4.0.1-mingw in Wine. I copied all dll's into system32 directory, and 
mingw10.dll too (because qt need it). Then i compiled a simple "Hello World!" with Qt dlls using 
MinGW for linux. I have no problem with cross compiling (0 errors & 0 warnings).

But when i run the app, wineserver & wine-preloader eat 90% of RAM and CPU and show only the border 
of windows, not the label, and the body of window is transparent.

I use Gentoo and use XMinGW (i386-mingw32msvc-g++ 3.4.4). The command line for compiling my example is:

joaquin at CUARTO ~/.wine/drive_c/Qt/4.0.1/examples/tutorial/t1 $ /opt/xmingw/bin/i386-mingw32msvc-g++ 
main.cpp -o t1.exe -DQT_EDITION=QT_EDITION_DESKTOP -DQT_DLL -DQT_NO_DEBUG -DQT_CORE_LIB -DQT_GUI_LIB 
-DQT_THREAD_SUPPORT -pipe -O2 -w -I../../../mkspecs/linux-g++ -I. -I../../../include/QtGui 
-I../../../include/QtCore -I../../../include -I../../../include/ActiveQt -I. 
-L/home/joaquin/.wine/drive_c/Qt/4.0.1/lib -lQtCore4 -lQtGui4

And the content of program is:

#include <QApplication>
#include <QPushButton>

int main(int argc, char *argv[])
{
     QApplication app(argc, argv);

     QPushButton hello("Hello world!");
     hello.resize(100, 30);

     hello.show();
     return app.exec();
}

My question is: Do i need to compile the source in windows only? Can i run in Wine app cross 
compiled using Qt for windows and mingw for linux?

I need to do a little program for windows and i don't want install Win only for compiling a minimal 
program, so i thought that wine can help me if i can cross compile my program.

I am using a clean .wine directory. No programs, only Qt and MinGW libraries installed in system32.

Regards


Joaquín

P.S. Excuse me for my little english.. i speak spanish...

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