[darwinbuild] Using darwinbuild for development

[Shantonu Sen]

If you have all the dependencies to build xnu outside a chroot, there  
is no value to using darwinbuild. Why are you?

darwinbuild emulates Apple's build system, which cleans out old  
object files between builds. Many projects don't do correct  
dependency tracking, or fail when old intermediates are present. The  
point of darwinbuild is to be reproducible and self-contained, and is  
not the best option for iterative development if you already have  
that working.

Shantonu

On Sep 27, 2005, at 3:18 PM, Markus Hitter wrote:

>
> Hello all,
>
> a few days ago I decided to give the kernel a kick. As there are so  
> many good comments about darwinbuild, I set up this to build the  
> thing.
>
> Now, it seems a lot like the kernel is built from scratch each time  
> I issue darwinbuild, regardless of how much code I change. Even two  
> "darwinbuild xnu" in a row do two full rebuilds each time. In  
> comparison, building xnu outside darwinbuild makes builds after a  
> small code change almost a snap (5 min vs. 40 min).
>
> Is there something I could do about this?
>
>
> Thanks,
> Markus
>
> - - - - - - - - - - - - - - - - - - -
> Dipl. Ing. Markus Hitter
> http://www.jump-ing.de/
>
>
>
>
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