linux下交叉编译qwt

sudo apt-get install gcc-arm-linux-gnueabi g++-arm-linux-gnueabi

wget http://sourceforge.net/projects/qwt/files/qwt-6.2.0.tar.gz
tar -xzvf qwt-6.2.0.tar.gz
cd qwt-6.2.0

QWT_CONFIG += CrossCompile
QWT_CONFIG += ARM

# 设置交叉编译工具链的路径
QWT_CROSS_COMPILE = arm-linux-gnueabi-

# 设置目标平台
QWT_TARGET_PLATFORM = linux-arm-g++

qmake qwt.pro
make

make install DESTDIR=/path/to/target/rootfs

sudo apt-get install libqt5core5a libqt5gui5 libqt5widgets5

#include <QApplication>
#include <QwtPlot>
#include <QwtPlotCurve>

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

    QwtPlot plot;
    plot.setTitle("Simple QWT Example");
    plot.insertLegend(new QwtLegend(), QwtPlot::RightLegend);

    QwtPlotCurve curve("Example Curve");
    QVector<double> x(101), y(101);
    for (int i = 0; i < 101; ++i) {
        x[i] = i / 50.0 - 1;
        y[i] = x[i] * x[i];
    }
    curve.setSamples(x, y);
    curve.attach(&plot);

    plot.resize(800, 600);
    plot.show();

    return app.exec();
}

arm-linux-gnueabi-g++ -o qwt_example qwt_example.cpp -I/path/to/qwt/include -L/path/to/qwt/lib -lqwt -lQt5Core -lQt5Gui -lQt5Widgets