importC to bindings via -Hf=your.di intermediate ?

[Bruce Carneal]

I'm trying to use importC to help automate .di and targeted 
library production (for the Nvidia libs that dcompute taps into).

As you'll note if you try this yourself, the -Hf output of an 
importC run looks pretty interesting but has some, obvious, 
systemic problems.  For example:

   typedef SomeOpaqueStructYoureNotSupposedToSeeInside *HandleT;
becomes
   alias HandleT = struct 
SomeOpaqueStructYoureNotSupposedToSeeInside*;

I wondered if others have experience generating bindings with 
importC and suggestions they'd care to share.

I will note that I've had some luck using importC directly, with 
a little fiddling, but it looks like it could also be a 
supported/robust 99%+ binding generator going forward with some 
work.