This reverts commit 2e75be5f64fb21cbbdff3353dbd507c2ca26946a. This patch was originally written by Andrew den Exter in 222e06bf4ed509e72c1533cbe1d4859ca96933f3, externally from the main Qt tree. I upstreamed this as part of our porting efforts. Some time later, this was accidentally reverted in 2e75be5f64fb21cbbdff3353dbd507c2ca26946a: we can't go back in time to examine exactly what happened, but presumably Andrew didn't notice that I had upstreamed this, attempted to apply the patch and ignored the "already applied" warning by accident - and continued on dutifully with the patch accidentally reverted. This change is correct, though, and is thus reinstated. Change-Id: Idfe6ab39ad011f0401de25fe056aa3eb3fb8b424 Reviewed-by: Andrew den Exter <andrew.den.exter@qinetic.com.au> Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>