Question

I downloaded Qt SDK and set up paths for qmake etc commands. Now I’m trying to compile “Hello World” program from command-line but don’t know how to do that in Windows.

In Linux, it’s very simple: qmake -project; qmake; make;

In Windows I tried: qmake -project; qmake; mingw32-make;
mingw32-make returns: “Nothing to be done for first”

Source code which I would like to compile is here:

#include <QtGui>
int main(int argc, char *argv[]) {
    QApplication app(argc, argv);
    QMainWindow mainWindow;
    mainWindow.setWindowTitle("Hello World!");
    mainWindow.show();
    return app.exec();
}

I know that I could use Qt Creator IDE but I would like to know how to compile Qt programs in command-line.

Anybody have experiences?

Answer 1

“Nothing to be done” can indicate that everything was already compiled.

You can run mingw32-make clean and then mingw32-make again to check if that’s the case.

Also check that the .pro file generated by qmake -project does list your .cpp file in the SOURCES variable.