c++ - Qt 尚未移植到此操作系统

Question

我正尝试在 eclipse 中使用 Cross ARM GCC 编译我的 c++ 项目。

我安装了 GNU ARM Eclipse Plug-ins(如描述的 here )，通过运行 sudo apt-get install libqt4-dev 安装了 libqt4-dev ，并将 Qt 库包含到我的项目中:

/usr/include/qt4
/usr/include/qt4/Qt
/usr/include/qt4/QtCore
/usr/include/qt4/QtGui

(项目 > 属性 > C/C++ 构建 > 设置 > Cross ARM C++ 编译器 > 包含)

和:

QtCore
QtGui

(项目 > 属性 > C/C++ 构建 > 设置 > Cross ARM C++ 链接器 > 库)

运行 qmake 成功并创建一个 Makefile。

但我无法构建我的项目。

这是我的代码(在默认编译器下使用 make all 编译和运行良好，而不是 Cross ARM GCC):

main.cpp

#include "mainwindow.h"
#include <QApplication>

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

    MainWindow mainWindow;
    mainWindow.setGeometry(0,0,mainWindow.getButtonWidth(),mainWindow.getButtonHeight()*mainWindow.getButtonsNum());
    mainWindow.show();
    return app.exec();
}

主窗口.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPushButton>

namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT
public:
    explicit MainWindow(QWidget *parent = 0);
    int getButtonWidth();
    int getButtonHeight();
    int getButtonsNum();
    ~MainWindow(){}
private:
    QPushButton *button1, *button2, *button3, *button4;
    const int ButtonWidth = 200;
    const int ButtonHeight = 50;
    const int ButtonsNum = 4;
};
#endif // MAINWINDOW_H

主窗口.cpp

#include "mainwindow.h"
#include <QCoreApplication>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    button1 = new QPushButton("Button1", this);
    button2 = new QPushButton("Button2", this);
    button3 = new QPushButton("Button3", this);
    button4 = new QPushButton("Button4", this);

    button1->setGeometry(QRect(QPoint(0, ButtonHeight*0), QSize(ButtonWidth, ButtonHeight)));
    button2->setGeometry(QRect(QPoint(0, ButtonHeight*1), QSize(ButtonWidth, ButtonHeight)));
    button3->setGeometry(QRect(QPoint(0, ButtonHeight*2), QSize(ButtonWidth, ButtonHeight)));
    button4->setGeometry(QRect(QPoint(0, ButtonHeight*3), QSize(ButtonWidth, ButtonHeight)));
}

int MainWindow::getButtonWidth()
{
    return ButtonWidth;
}

int MainWindow::getButtonHeight()
{
    return ButtonHeight;
}

int MainWindow::getButtonsNum()
{
    return ButtonsNum;
}

我在 ./src 中的文件:

• main.cpp
• 主窗口.cpp
• 主窗口.h
• proConfig.pro

这是proConfig.pro:

QT       += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = proConfig
TEMPLATE = app

SOURCES +=  main.cpp \
            mainwindow.cpp

HEADERS  += mainwindow.h

我在 eclipse 中点击Build All，我得到:

16:56:22 **** Incremental Build of configuration Release for project TestProject ****
make all 
Building file: ../src/main.cpp
Invoking: Cross ARM C++ Compiler
arm-none-eabi-g++ -mcpu=cortex-m3 -mthumb -O2  -g -I/usr/include/qt4 -I/usr/include/qt4/Qt -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -std=gnu++11 -fabi-version=0 -MMD -MP -MF"src/main.d" -MT"src/main.o" -c -o "src/main.o" "../src/main.cpp"
In file included from /usr/include/qt4/QtCore/qnamespace.h:45:0,
                 from /usr/include/qt4/QtCore/qobjectdefs.h:45,
                 from /usr/include/qt4/QtGui/qwindowdefs.h:45,
                 from /usr/include/qt4/QtGui/qwidget.h:46,
                 from /usr/include/qt4/QtGui/qmainwindow.h:45,
                 from /usr/include/qt4/QtGui/QMainWindow:1,
                 from ../src/mainwindow.h:4,
                 from ../src/main.cpp:14:
/usr/include/qt4/QtCore/qglobal.h:268:4: error: #error "Qt has not been ported to this OS - talk to qt-bugs@trolltech.com"
 #  error "Qt has not been ported to this OS - talk to qt-bugs@trolltech.com"
    ^
make: *** [src/main.o] Error 1

16:56:23 Build Finished (took 469ms)

Answer 1

I'm trying to compile my c++ project with Cross ARM GCC in eclipse.

I installed GNU ARM Eclipse Plug-ins (as described here), installed libqt4-dev by running sudo apt-get install libqt4-dev

此 libqt4-dev 拷贝适用于您的主机 x86/x64 CPU。您不能使用它为您的 ARM CPU 进行交叉编译。

使用您的 Cross ARM GCC 编译器自行构建 Qt。参见 https://forum.qt.io/topic/26540/how-can-i-cross-compile-qt-5-0例如。

顺便说一句，Qt 4 非常非常古老。 2015 年 12 月后将不再支持它。我强烈建议您改用 Qt 5。