Re: [boost] Dependency report

Subject: Re: [boost] Dependency report
From: Peter Dimov (lists_at_[hidden])
Date: 2017-07-28 08:46:40

Robert Ramey wrote:
> I like these reports and find them interesting.  But one thing would make 
> them much more useful to me.  Consider the following scenario:
>
> I have a small app which uses the date_time library.  I would like to know 
> what boost modules I need to include.  I look on your charts, and see that 
> date-time has a primary dependency on the serialization library.  This 
> suggests that I need to include the serialization library in my small app 
> to make it work - which is actually untrue.  Now what useful information 
> has your report given me?
>
> The problem of is that my small app includes only those headers from 
> date-time that it actually needs.  So a useful dependency report would 
> only follow those headers.  So.....
>
> Could I ask for a feature enhancement for these tools (assuming they don't 
> already have it). Could I list a set of source files which would 
> constitute the "root" of the the dependency search.

I've added a --subset-for option to boostdep; you can't give it a list of 
sources, but you give it a directory containing them, so

    dist\bin\boostdep --subset-for d:\my_projects\my_app

will give you the Boost subset included by the files in 
d:\my_projects\my_app.