compiling direct x version

[Raimoo]

The only reason people are asking for a DirectX backend is so that it works on old devices that only have crappy GPU drivers that don't support OpenGL 2.0 how will DirectX12 help those people?

Maybe it wont help those people in particular but can help performance and possibly add more graphical features.

You pretty much get the wrong idea here... the DirectX backend was mend to make PPSSPP playable on device that doesn't support OpenGL2.0. DirectX12 may "can help performance and possibly add more graphical feature" but if it doesn't works on the device I mention earlier, why do you even bother to have the latest DirectX implemented in PPSSPP then?