this is an exclusively user-controllable variable. the mkspec may provide
a default via QT_QPA_DEFAULT_PLATFORM when it deviates from the platform
default known to configure, and these specs actually already make use of
that.
Change-Id: I7531063d4c404ebed7b2cc1647c61626db30daef
Reviewed-by: Kyle Edwards <kyle.edwards@kitware.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Old header.LGPL21 header was used at some files. Replase those with
new header.LGPL one
Remove old header.LGPL21
Task-number: QTBUG-57147
Change-Id: I650e39024ed4876bba27e954c7d61fdb025b46ef
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>