Re: [jamboost] Incrementally rebuild bjam?

From: Toon Knapen (toon.knapen_at_[hidden])
Date: 2004-12-09 15:57:49

David Abrahams wrote:
> Hi,
> 
> I'd like to be able to issue some command to rebuild bjam only when it's
> out of date. I am going to run a script that does this repeatedly and I
> don't want to waste CPU cycles rebuilding bjam when it's unneeded. Is
> there a way (that doesn't involve knowing the guessed toolset name
> beforehand?)

IIUC build.sh first builds bjam0 from the sources. And than bjam is 
generated from the sources using bjam0. Well if you know you already 
have a bjam0, you can directly call bjam0. I don't know the different 
between bjam0 and the final bjam executable that is generated but I 
guess that bjam0 will also do dependency checking and thus only rebuild 
what is out of date.