stdc autoconfig through precompiling

[Anders F Björklund]

Fawzi Mohamed wrote:
> Stdc has many constants that are hardcoded. This is fragile and ugly to 
> port to new platforms.
...
> I think Sean is taking a "let's wait and see" attitude toward this, kind 
> of test it and if it is really good it will go in druntime (Sean just 
> tell if misrepresented your opinion).
> Anyway that was to say that also phobos users are encouraged to 
> contribute if they think that it will be useful...
> 
> so help out and suggest improvements, correct errors,...

Did you look at what gphobos is doing for gcc.config.* ?

http://dgcc.svn.sourceforge.net/viewvc/dgcc/trunk/d/phobos/config/

--anders