ddraw: Allow creating back buffer for pre-DirectX 7 interfaces.

[Austin English]

2010/7/19 Oldřich Jedlička <oldium.pro at seznam.cz>:
> The tests will be a problem, because I don't have the Windows machine as a
> reference. Also `make test` fails on DirectX tests for me because of r600
> driver bug...
>
> When I write CreateSurface tests (for various interfaces), is there a way for
> me to run the tests on Windows? I have a Windows XP machine at work.

If you have mingw installed, you can use 'make crosstest' to make a
test executable that will run on windows.

-- 
-Austin