[Libreoffice] clean rebuilds needed

[Stephan Bergmann]

On 09/26/2011 07:00 PM, Bjoern Michaelsen wrote:
> The concept of dependencies only get you so far -- the rest is better
> left to caching (aka ccache).

I think its *file based* dependencies that's the problem here -- they 
are simply not at the right level of granularity.  (Then again, I'm not 
sure there's at all a working theory of making arbitrary changes to your 
source tree and then rebuilding everything that needs to be rebuilt 
while only rebuilding as little as possible what would not necessarily 
need to be rebuilt.)

-Stephan