Creation of a Build tool on top of the D compiler

[BCS]

Reply to kris,

> BCS wrote:
> 
>> what If I have a 200+ module project that take ten minutes to compile
>> (lots of templates say) a build only what's needed strategy is still
>> needed. having bud walk the whole tree and still only build what is
>> needed is still useful. I don't think /that/ functionality should go
>> into the compiler.
>> 
> Yes, I agree. The compiler should still handle the basic requirement
> though. After all, currently loads /and/ parses every single one of
> those 200+ modules regardless (if they're imported in any fashion)
> 

If all imports are private then compiling module N only requiters parsing 
only the modules that N imports. Also lex/parse/syntax isn't all that compiling 
requiers.