Idea: std.build instead of dub and make-like tools

[Piotrek via Digitalmars-d]

Hi,

What do you think about concentrating D build system around a 
hypothetical "std.build" module instead of investing in dub or 
other custom tools?

Also instead of custom build file format like JSON/SDL/XML/YAML 
we could simply use a d source file, e.g "build.d".

All specification would be included in "std.build".

Did I miss any blocking point?

Piotrek