Fix static linkage
Fix static linkage

Task-number: QTBUG-34638
Change-Id: Ie8fc39459107a984fac02396537c99bea1f29691
Reviewed-by: Ivan Vizir <c1243858861556734ae9480955428cde5b7408bd@yandex.com>
Reviewed-by: Friedemann Kleint <1b9f2592239daaec4856ccc1cfb4d2d55b35fb71@digia.com>

kobolabs/qtwinextras,kobolabs/qtwinextras