QApplication app(argc, argv); QLabel label("Hello from Qt 4.8.7"); label.show(); return app.exec();
FROM ubuntu:16.04 RUN apt-get update && apt-get install -y build-essential libgl1-mesa-dev ... ADD qt-everywhere-opensource-src-4.8.7.tar.gz /opt/ WORKDIR /opt/qt-everywhere-opensource-src-4.8.7 RUN ./configure -prefix /usr/local/qt487 ... && make -j4 && make install qt 4.8.7
qmake -project qmake make ./your_app
wget https://download.qt.io/archive/qt/4.8/4.8.7/qt-everywhere-opensource-src-4.8.7.tar.gz Alternate: https://download.qt.io/archive/qt/4.8/4.8.7/ Linux (Ubuntu 18.04/20.04 example) sudo apt-get install build-essential libgl1-mesa-dev libglu1-mesa-dev \ libx11-dev libxext-dev libxtst-dev libxrender-dev libxrandr-dev \ libxcursor-dev libxfixes-dev libxi-dev libxinerama-dev libfreetype6-dev \ libfontconfig1-dev libdbus-1-dev libssl-dev tar xzf qt-everywhere-opensource-src-4.8.7.tar.gz cd qt-everywhere-opensource-src-4.8.7 ./configure -prefix /opt/qt487 -opensource -confirm-license -nomake examples -nomake demos make -j$(nproc) sudo make install QApplication app(argc, argv); QLabel label("Hello from Qt 4
wget https://download.qt.io/official_releases/qtcreator/3.5/3.5.1/qt-creator-opensource-linux-x86_64-3.5.1.run chmod +x qt-creator-opensource-linux-x86_64-3.5.1.run ./qt-creator-opensource-linux-x86_64-3.5.1.run Then set Kit → Qt version → /opt/qt487/bin/qmake . If you're starting a new project → do not use Qt 4.8.7 . If you're starting a new project → do not use Qt 4