Fixed configure printing "configure failed" and not failing.
Fixed configure printing "configure failed" and not failing.

On Unix, when qmake hit an error, configure would print out "configure
failed", but exit with 0 exit code.  Therefore the build would
incorrectly continue despite build system errors.

qtproject/qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,qtproject/qt-mobility,tmcguire/qt-mobility,qtproject/qt-mobility,KDE/android-qt-mobility,tmcguire/qt-mobility,enthought/qt-mobility,qtproject/qt-mobility,kaltsi/qt-mobility,KDE/android-qt-mobility,enthought/qt-mobility,tmcguire/qt-mobility,KDE/android-qt-mobility,qtproject/qt-mobility,qtproject/qt-mobility,KDE/android-qt-mobility,kaltsi/qt-mobility,tmcguire/qt-mobility,enthought/qt-mobility,kaltsi/qt-mobility,tmcguire/qt-mobility,enthought/qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,kaltsi/qt-mobility