QT_INSTALL_LIBS is not the right place to check for Qt dlls, as they
cannot be found there in a non-developer build. In order to be able
to find the dlls and make adding dll locations easier for the user,
QMAKE_DLLS_PATHS was added. On Windows, the variable points to Qt's
bin directory by default.
Task-number: QTBUG-44960
Change-Id: Ie4e5beeaadee798a055599387e842d7c0502c27a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
32849f4997