[Interest] Can't build Qt 5.4.2 properly on virtual systems

[Tron Thomas]

I have successfully made a build of Qt  5.4.2 from Git on a Macintosh System running OS X 10.10.2, and 64-bit Windows system running Windows 7 Enterprise.

I have also tried to perform the same build process on two virtual Machines, one running Windows 7 Enterprise 64-bit and another running CentOS 6.5 64-bit. Both builds of Qt 5.4.2 on these system seem to complete successfully, however they result in builds that are missing Qt5UiTools.

The main difference between the builds seems to be whether they are done on real or virtual hardware.

The Windows builds were both done using nmake for Visual Studio 2013 Professional

What can be done to allow Qt 5.4.2 to build successfully on virtual systems?