If we already explicitly point at one Qt installation, don't override with another one. Also, support all the way up to Qt 5.9.1 Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If we already explicitly point at one Qt installation, don't override with another one. Also, support all the way up to Qt 5.9.1 Signed-off-by: Dirk Hohndel <dirk@hohndel.org>