Linker/inclure la SDL dans QT

QT       += core gui

TARGET = Essaie2
TEMPLATE = app

INCLUDEPATH +=C:\Users\Victor\Documents\Projets\paintball\SDL-devel-1.2.14-mingw32
LIBS +=C:\Users\Victor\Documents\Projets\paintball\SDL-devel-1.2.14-mingw32\SDL-1.2.14\bin

SOURCES += main.cpp\
        Fenetre.cpp

HEADERS  += Fenetre.h

FORMS    += widget.ui

#include "Fenetre.h"
#include <iostream>
using namespace std;

Fenetre::Fenetre(int FenWidth, int FenHeight) : QWidget()
{
    setFixedSize(FenWidth, FenHeight);
    setWindowIcon(QIcon("icone_qt.png"));
    setWindowTitle("Editeur Mouvement v0.01");

    onglets = new QTabWidget(this);
    onglets->setGeometry(30, 20, 240, 160);

    // 2 : Créer les pages, en utilisant un widget parent pour contenir chacune des pages.
    page1 = new QWidget;

    // Page 1
        frame = new QFrame();
        frame->setGeometry(30, 20, 120, 90);
        frame->setAttribute(Qt::WA_PaintOnScreen);
        frame->setAttribute(Qt::WA_NoSystemBackground);


        // On lie SDL a Qt
            char windowid[64];
            #ifdef Q_WS_WIN
                sprintf(windowid, "SDL_WINDOWID=0x%lx", reinterpret_cast<qlonglong>(frame->winId()));
            #elif defined Q_WS_X11
                sprintf(windowid, "SDL_WINDOWID=0x%lx", frame->winId());
            #else
                qFatal("Fatal: cast du winId() inconnu pour votre plate-forme; toute information est la bienvenue!");
            #endif

            cout<<windowid;

            SDL_putenv(windowid);
            // Initialisation du système vidéo de SDL
            SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
            SDL_Surface* screen = SDL_SetVideoMode(120, 90, 32,SDL_HWSURFACE|SDL_DOUBLEBUF);
        //fin SDL

        QVBoxLayout *vbox1 = new QVBoxLayout;
        vbox1->addWidget(frame);

        page1->setLayout(vbox1);

    // Fin page 1


    onglets->addTab(page1, "SDL Mouvement");
}

#ifndef FENETRE_H_INCLUDED
#define FENETRE_H_INCLUDED

#include <SDL-1.2.14/SDL.h>
#include<SDL-1.2.14/SDL_video.h>
#include<SDL-1.2.14/SDL_joystick.h>
#undef main

#include <QApplication>
#include <QtGui>

class Fenetre : public QWidget // On hérite de QWidget (IMPORTANT)
{
    public:
    Fenetre(int FenWidth, int FenHeight);

    private:
    QPushButton *m_bouton;
    QTabWidget *onglets;
    QWidget *page1;
    QFrame *frame;

};

#endif // FENETRE_H_INCLUDED

#include "fenetre.h"

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

    QApplication app(argc, argv);

    Fenetre fenetre(400,200);
    fenetre.show();

    return app.exec();;
}