Issues with MemoryBarrier conflicting with winnt.h macros

[haasn]

When using --mx the GladGLContext contains a struct member called just MemoryBarrier, from glMemoryBarrier.

This conflicts with the MemoryBarrier macro defined in <winnt.h>, leading to compilation issues in some cases.

It might be possible to work-around this on my end but I fear that the <winapifamily.h> import inside glad pulls this symbol in. I'll investigate.

[haasn]

Oh, actually, I think the trick is to #undef it before importing glad/gl.h, not after, as I was currently doing. That seems to have worked around it. 🤷