QT5

Hi,

I came across the following error message
when running the tests in gr-qtgui


qt.core.qobject.connect: QObject::connect: No such signal
QComboBox::activated(QString)
qt.core.qobject.connect: QObject::connect: (sender name:
'FFTSizeComboBox')
qt.core.qobject.connect: QObject::connect: (receiver name:
'SpectrumDisplayForm')
.qt.core.qobject.connect: QObject::connect: No such signal
QComboBox::activated(QString)
qt.core.qobject.connect: QObject::connect: (sender name:
'FFTSizeComboBox')
qt.core.qobject.connect: QObject::connect: (receiver name:
'SpectrumDisplayForm')

I'm running QT 5.15 on f40 and in QT 5.15 the signal
QComboBox::activated(QString) is obsolete.

But i versions < 5.15 this seems to be a valid signal.

Before fixing this my question:

Do we still support Qt5 Versions before 5.15 or can we assume that
Qt5.15 is available?

-- Volker