Re: [Boost-build] tracing weird dependecies

Subject: Re: [Boost-build] tracing weird dependecies
From: Gevorg Voskanyan (v_gevorg_at_[hidden])
Date: 2011-05-09 04:39:33

Patrick Hoffmann wrote:

> Hi all,
> 
> in a C++ project I got some problems with dependencies which I do  not 
>understand. When I changed some header bjam rebuilds some files which do NOT  
>include this header directly or indirectly.
> 
> The suspect is our  QT-MOC-mechanism which pre-compiles some dialog/window 
>class code. Don't know if  this is a known problem.
> 
> But what I really like to know from you guys is,  if there is a possibility to 
>trace the dependency of a specific file. I tried  some -d option-magic but this 
>gives me over 1 GB of output which I was not able  to handle yet.
> 
> What I would like to have is either a possibility to get  the concrete 
>dependencies for one specific file which leads bjam to rebuild that  file or in 
>other words why - for example - file "a.cpp" depends on header  "b.hpp".
> 
> Can someone help?

Not sure it will help, but what are the names of the directories the changed 
header is located in?

> Best regards, Patrick  Hoffmann

Best Regards,
Gevorg