TARGET = basket
TEMPLATE = app
SOURCES += main.cpp
HEADERS +=

#include <QtGui/QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    return a.exec();
}

g++ -c -pipe -g -Wall -W -D_REENTRANT -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/lib/qt46/mkspecs/linux-g++ -I. -I/usr/lib/qt46/include/QtCore -I/usr/lib/qt46/include/QtGui -I/usr/lib/qt46/include -I. -o main.o main.cpp

g++ -o basket main.o -L/usr/lib/qt46/lib -lQtGui -L/usr/lib/qt46/lib -lQtCore -lpthread

[root@ARM basket]# ./build_g++_step2
main.o: In function `basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >::data(void) const':
/usr/lib/gcc-lib/i586-linux/2.95.4/../../../../include/g++-3/std/bastring.h:152: undefined reference to `QApplication::QApplication(int &, char **, int)'
/usr/lib/gcc-lib/i586-linux/2.95.4/../../../../include/g++-3/std/bastring.h:152: undefined reference to `QApplication::exec(void)'
/usr/lib/gcc-lib/i586-linux/2.95.4/../../../../include/g++-3/std/bastring.h:152: undefined reference to `QApplication::~QApplication(void)'
/usr/lib/gcc-lib/i586-linux/2.95.4/../../../../include/g++-3/std/bastring.h:152: undefined reference to `QApplication::~QApplication(void)'
collect2: ld returned 1 exit status