I have aproblem to integrate the Libusb for Android

xmaze

I have wrote a test App because i can not integrate the libusb, the code is the following:
Any suggestion?
i have this error @/home/unix/MyCODE/QT_Creator/App_Android/mainwindow.cpp:20: error: undefined reference to 'libusb_init'@

mainwindow.h
@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "stdio.h"
#include <libusb.h>

#define stderr (&__sF[2])

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();

private slots:
void on_pushButton_clicked();

private:
Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H
@
mainwindow.cpp
@#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::on_pushButton_clicked()
{
libusb_context *ctx;

libusb_init(&ctx);
int i=1;
fprintf(stderr, "Failed to submit transfer %i!\n", i);

}
@

.pro file
@#-------------------------------------------------

Project created by QtCreator 2015-02-16T10:18:44

#-------------------------------------------------

QT += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = App_Android
TEMPLATE = app

SOURCES += main.cpp
mainwindow.cpp

HEADERS += mainwindow.h

FORMS += mainwindow.ui

CONFIG += mobility

INCLUDEPATH += /home/unix/Downloads/libusb-master/libusb

LIBS += -L/home/unix/Downloads/libusb-master/android/libs/x86
-lusb1.0
@

sxubach

Did you succeed in this? I am having the same problem