Build-dependencies for qt5

[Ole Streicher <olebole@debian.org>]

Hi,

I am adopting a package (plplot) that depends on (Qt4 or) Qt5. The
description of the "qt5-default" package, says that this package should
not be used to build a dependent package but to look into

http://pkg-kde.alioth.debian.org/packagingqtbasedstuff.html

instead. From this, I take that I have to use "export QT_SELECT = 5" in
d/rules; but what are then my required build dependencies? Just
qtchooser? Or do I need to install any qt5 development package as well?

Best regards

Ole