LDC -noruntime

[BLM768]

>
> It's not like compiling without a runtime will make the 
> compiler not emit calls; what else would it do for e.g. the 
> 'new' expression? Anyway, given your situation, just grab the 
> function prototypes from druntime and stub them out, then fill 
> them in later.

I knew that stuff like "new" wouldn't work without the runtime, 
but code that only does a few struct member accesses and a 
pointer cast shouldn't require runtime functions; that's all 
elementary C stuff. I've worked a little on stubbing out 
functions, but I'd rather not link any extra code to my current 
program, which is just a small 32-bit assembly/D bootstrapper 
that loads the actual 64-bit kernel. Looks like I might have to 
just use assembly, use some C, or write my own compiler.