所需工具:
交叉编译工具:arm-linux-gcc 4.4.3
qt4.8.4源码包:qt-everywhere-opensource-src-4.8.4.tar.gz
编译:
解压qt4.8.4源码包:
tar -zxvf qt-everywhere-opensource-src-4.8.4.tar.gz
设置交叉编译工具链,修改文件/qt-everywhere-opensource-src-4.8.4/mkspecs/linux-arm-gnueabi-g++ /qmake.conf,修改内容如下:
# modifications to g++.conf
QMAKE_CC = arm-none-linux-gnueabi-gcc
QMAKE_CXX = arm-none-linux-gnueabi-g++
QMAKE_LINK = arm-none-linux-gnueabi-g++
QMAKE_LINK_SHLIB = arm-none-linux-gnueabi-g++
# modifications to linux.conf
QMAKE_AR = arm-none-linux-gnueabi-ar cqs
QMAKE_OBJCOPY = arm-none-linux-gnueabi-objcopy
QMAKE_STRIP = arm-none-linux-gnueabi-strip
生成Makefile:
./configure -prefix /usr/local/qt-4.8.4-for-arm -embedded arm -host-little-endian -no-cups -no-3dnow -nomake examples -nomake demos -nomake docs -xplatform /qws/linux-arm-g++
编译:
make #此过程大概需要两个多小时 make install
修改环境变量,在~/.bashrc中添加以下语句
export ARMQTDIR=/opt/qt-4.8.4-for-arm export PATH=$ARMQTDIR/bin:$PATH export LD_LIBRARY_PATH=$ARMQTDIR/lib export QMAKESPEC=/opt/qt-4.8.4-for-arm/mkspecs/qws/linux-arm-g++
重新加载~/.bashrc:
source ~/.bashrc
检查是否成功:
qmake -v #输出以下信息: #QMake version 2.01a #Using Qt version 4.8.4 in /opt/qt-4.8.4-for-arm/lib which qmake #输出: #/opt/qt-4.8.4-for-arm/bin/qmake
测试代码:
/*main.cpp*/ #include "mainwindow.h" #include <QApplication> int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; w.show(); return a.exec(); }
/*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; }
/*mainwindow.h*/ #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> namespace Ui { class MainWindow; } class MainWindow : public QMainWindow { Q_OBJECT public: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); private: Ui::MainWindow *ui; }; #endif // MAINWINDOW_H
<!-- mainwindow.ui --> <ui version="4.0"> <class>MainWindow</class> <widget class="QMainWindow" name="MainWindow" > <property name="geometry" > <rect> <x>0</x> <y>0</y> <width>400</width> <height>300</height> </rect> </property> <property name="windowTitle" > <string>MainWindow</string> </property> <widget class="QMenuBar" name="menuBar" /> <widget class="QToolBar" name="mainToolBar" /> <widget class="QWidget" name="centralWidget" /> <widget class="QStatusBar" name="statusBar" /> </widget> <layoutDefault spacing="6" margin="11" /> <pixmapfunction></pixmapfunction> <resources/> <connections/> </ui>
执行qmake生成Makefile,然后make编译:
qmake qttest.pro make
如果编译通过无错误,说明成功了。