Set Qt minimum to 5.9.4
This allows DragonflyBSD and Ubuntu 18.04LTS to compile.
There are Qt >= 5.10.0 checks in KeyboardTranslatorTest due to
qCompare errors.
(cherry picked from commit ed8847ec94a7d8d284fe3ed0383c83707516de9e)
hindenburg | Mar 20 2019, 3:39 AM |