Re: [jamboost] Library order

From: Jürgen Hunold (hunold+lists.Boost_at_[hidden])
Date: 2004-02-02 07:56:23

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Hi Volodya !

On Monday 02 February 2004 10:12, Vladimir Prus wrote:

> > Shall I run some profiling ?
>
> If that's not too much inconvenience, then I'd appreciate seeing the
> profile.

Running bjam -d+10 ?

> > Is is possible to make library-ordering a customizable feature ?
> > Like <hardcode-dll-paths> maybe ?
>
> Another approach is to rewrite the ordering code in C. Currently, we
> run graph algorithm in jam code, and jam was never meant for that.

Well, I'd like to have a mechanism to disable this completely. I fear 
that my legacy projects will suffer from an increase in startup time no 
matter how fast the algorithm will be. And this is simply due to the 
fact that library organisation went out amok some years ago. And 
unfortunately I'm not in the position to get that changed in the near 
future.
I've got severe acceptance problems from my co-workers because the 
startup-time is way too high for them. One proposal was to disable 
scanning system includes (#include <>) in order to get a much smaller 
dependency graph.

> > You only need to order libraries
> > when doing static linking. But for this to work, we need the
> > "order-sensitive" properties for system libraries, because these
> > must be ordered, too.
>
> Well, you can declare "searched libraries" and set order between
> them.

Oh, it seems it should take a deeper look at the docs ;-)

Yours,
Jürgen

- -- 
* Dipl.-Math. Jürgen Hunold ! Institut für Verkehrswesen, Eisenbahnbau
* voice: ++49 511 762-2529 ! und -betrieb, Universität Hannover  
* fax : ++49 511 762-3001 ! Appelstrasse 9a, D-30167 Hannover
* hunold_at_[hidden] ! www.ive.uni-hannover.de
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