That's the error I meant in my comment for mingw-w64-qt5-base-dynamic. So I'm aware of it. It was tests.fxc
in particular which didn't work simply because that tool isn't available in our mingw-w64 environment. If you need that package you could try to fix that but I have currently no motivation to do so.
If one wants to go for it: The tool this feature check wants is FXC.exe
(see https://docs.microsoft.com/en-us/windows/win32/direct3dtools/dx-graphics-tools-fxc-syntax). It can likely be started with WINE (via mingw-w64-wine) and it would likely work to create a mingw-w64 package for it which simply repackages the blob from Microsoft (likely not redistributable).
Pinned Comments
Martchus commented on 2016-05-18 22:01
All my packages are managed at GitHub where you can also contribute directly: https://github.com/Martchus/PKGBUILDs
Patches for this package are managed at: https://github.com/Martchus/qtbase/tree/5.7.0-mingw-w64
There also exist a binary repository: https://martchus.no-ip.biz/repo/arch/ownstuff
For general notes, discussion and issues not only concerning this variant please use the comment section of the package mingw-w64-qt5-base.