Well, I kind of do. Let me try to explain.

The x86 rootfs I'm trying to compile for is not a standard one. Is a rootfs created for embedded devices with a certain Qt version and I want to create Qt apps that will run on a device powered by this rootfs. So, if I build it on my x86 machine I have no guarantee that it will work on the x86 target.

Does it make sense?
Thanks