$ sudo apt-get install libqt4-dev $ mkdir qthello $ cd qthello $ cat > hello.cpp #include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QLabel hello("hello, world"); hello.show(); return app.exec(); } $ qmake -p…

$ cat hello.c #include int main(int argc, char *argv[]) { GtkWidget *window; GtkWidget *label; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); label = gtk_label_new("hello, world"); gtk_container_add(GTK_CONTAINER(win…